Teoria_veroyatnostey
.pdfdLQ DISKRETNYH SLU^AJNYH WELI^IN
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xiyjpij: |
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dLQ NEPRERYWNYH SLU^A^AJNYH WELI^IN |
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K; = Z |
Z (x ; M )(y ; M )f(x; y)dxdy |
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;1 ;1 |
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eSLI SLU^AJNYE WELI^INY I - NEZAWISIMY, TO TOGDA K; = 0, NO |
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SU]ESTWU@T PRIMERY, KOTORYE POKAZYWA@T, ^TO HOTQ K; = 0, SLU^AJ- |
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NYE WELI^INY I - ZAWISIMY. |
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oPREDELENIE. kO\FFICENTOM KORRELQCII NAZYWAETSQ WELI^INA |
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r; = p |
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sWOJSTWA KO\FFICENTA KORRELQCII
1) dLQ NEZAWISIMYH SLU^AJNYH WELI^IN r; = 0:
2) jr;j 1:
3) jr;j = 1 TOGDA I TOLXKO TOGDA, KOGDA SU]ESTWU@T TAKIE ^ISLA a 6= 0 I b, ^TO = a + b.
zNA^IT, KO\FFICENT KORELQCII HARAKTERIZUET LINEJNU@ ZAWISIMOSTX MEVDU SLU^AJNYMI WELI^INAMI.
pRIMER 3. dWUMERNOE NORMALXNOE RASPREDELENIE IMEET WID:
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1 |
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f(x; y) = |
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2 1 2p |
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exp |
(x ; a1)2 |
+ r(x ; a1)(y ; a2) |
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(y ; a2)2 |
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f;2(1 |
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r2) 2 |
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(1 |
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r2) |
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r2) 2 g |
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GDE a1 = M ; a2 = M ; 1 = p |
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; 2 = p |
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; r = r;. |
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D |
D |
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eSLI I NEZAWISIMY, TO DWUMERNOE NORMALXNOE RASPREDELENIE IME-
ET WID: |
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f(x; y) = |
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exp |
(x ; a1)2 |
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(y ; a2)2 |
g |
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2 |
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f; |
2 2 |
2 2 |
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pRIMER 4. zADANA DISKRETNAQ DWUMERNAQ SLU^AJNAQ WELI^INA ( ; ):
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6 |
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10 |
0,25 |
0,1 |
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14 |
0,45 |
0,2 |
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nAJTI KO\FFICENTY KORRELQCII r ; .
rE[ENIE. nAJDEM SNA^ALA M I M . |
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M = |
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xi( m pij) = 3 |
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(0; 25+0; 45)+6 |
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(0; 1+0; 2) = 3 |
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0; 7+6 |
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0; 3 = |
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3; 5. |
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i=1 |
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j=1 |
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M = jP=1 xi(iP=1 pij) = 10 |
(0; 25 + 0; 1) + 14 (0; 45 + 0; 2) = 10 0; 35 + |
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14 0; 65 = 12; 6. |
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dLQ WY^ISLENIQ DISPERSII WOSPOLXZUEMSQ FORMULOJ D = M 2 ; |
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(M )2. |
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nAJDEM M 2 I M 2: |
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M 2 = 9 |
0:7 + 36 |
0; 3 = 17; 1: |
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M 2 = 100 |
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0; 35 + 196 |
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0; 65 = 162; 4: |
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2 |
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= 17; 1 ; 15; 21 = 1; 89; |
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p |
D |
= 1; 7: |
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pO\TOMU |
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D = 17; 1 ; (3; 9) |
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; (12; 6) |
2 |
= 162; 4 ; 158; 76 = 3; 64; = |
p |
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D = 162; 4 |
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D = 1; 9: |
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nAJDEM KORRELQCIONNYJ MOMENT K ; : |
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n |
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K ; |
= iP=1 jP=1(xi ; M )(yj ; M )pij = (3 |
; 3; 9)(10 ; 12; 6) |
0; 25 + (6 ; |
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3; 9)(10 |
;12; 6) 0; 1+(3;3; 9)(14;12; 6) 0; 45+(6;3; 9)(14;12; 6) 0; 2 = |
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0; 06. |
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tOGDA r ; = |
0;06 |
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0; 018. |
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1;7 1;9 |
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zADA^I. |
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1. zADANA PLOTNOSTX RASPREDELENIQ NEPRERYWNOJ SLU^AJNOJ WELI^I-
NY ( ; ): |
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f(x; y) = 8 |
1 |
sin(x) sin(y); |
0 |
x ; 0 |
y |
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4 |
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< |
0; |
(x; y) = |
([0; ] |
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[0; ]): |
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2 |
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nAJTI KO\FFICENT: KORRELQCII. |
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2. zADANA DISKRETNAQ DWUMERNAQ SLU^AJNAQ WELI^INA ( ; )
n |
2 |
5 |
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0,4 |
0,15 |
0,35 |
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0,8 |
0,5 |
0,45 |
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nAJTI KO\FFICENT KORRELQCII r.
74
tIPOWOJ RAS^ET
tEORIQ WEROQTNOSTEJ
zADA^A 1.
1)iZ OTREZKA [0; 3] NAUGAD WYBIRAEM DWA ^ISLA. nAJTI WEROQTNOSTX TOGO, ^TO IH RAZNOSTX MENX[E 1.
2)nA DESQTI ODINAKOWYH KARTO^KAH NAPISANY ^ISLA OT 0 DO 9. nAJTI WEROQTNOSTX TOGO, ^TO NAUDA^U OBRAZOWANNOE S POMO]X@ DANNYH KAR- TO^EK TR<HZNA^NOE ^ISLO DELITSQ NA 2.
3)iZ OTREZKA [0; 3] NAUDA^U WYBIRAEM DWA ^ISLA. nAJTI WEROQTNOSTX TOGO, ^TO IH SUMMA BOLX[E TR<H.
4)nA DESQTI ODINAKOWYH KARTO^KAH NAPISANY ^ISLA OT 0 DO 9. nAJTI WEROQTNOSTX TOGO, ^TO NAUDA^U OBRAZOWANNOE S POMO]X@ DANNYH KAR- TO^EK DWUZNA^NOE ^ISLO DELITXSQ NA 2.
5)bROSAEM n IGRALXNYH KOSTEJ. nAJTI WEROQTNOSTX TOGO, ^TO NA WSEH KOSTQH WYPALO ODINAKOWOE ^ISLO O^KOW.
6)bROSAEM ^ETYRE MONETY. nAJTI WEROQTNOSTX TOGO, ^TO WYPALO ROWNO DWA "GERBA".
7)bROSAEM TRI MONETY. nAJTI WEROQTNOSTX TOGO, ^TO WPALO NE BOLX- [E DWUH "GERBOW".
8)nAJTI WEROQTNOSTX TOGO, ^TO PRI SLU^AJNOM UPORQDO^IWANII MNO- VESTWA f1; 2; : : : ; 2ng KAVDOE ^<TNOE ^ISLO IMEET ^<TNYJ NOMER.
9)iZ Q]IKA, SODERVA]EGO TRI BILETA S NOMERAMI 1, 2, 3 WYNIMA@T PO ODNOMU WSE BILETY. nAJTI WEROQTNOSTX TOGO, ^TO HOTQ BY U ODNOGO BILETA PORQDKOWYJ NOMER SOWPAD<T S SOBSTWENNYM.
10)bROSA@T DWE IGRALXNYE KOSTI. nAJTI WEROQTNOSTX TOGO, ^TO SUM- MA WYPAW[IH O^OKOW DELITSQ NA 6.
11)kAKOWA WEROQTNOSTX TOGO, ^TO SUMMA DWUH NAUGAD WZQTYH PO- LOVITELXNYH ^ISEL, KAVDOE IZ KOTORYH MENX[E LIBO RAWNO 1, BUDET MENX[E LIBO RAWNA 1, A IH PROIZWEDENIE BUDET NE BOLX[E 2/9.
12)nAJTI WEROQTNOSTX TOGO, ^TO NAUDA^U WZQTOE TR<HZNA^NOE ^ISLO
75
OKAVETSQ KRATNYM 2, LIBO 5, LIBO I TOMU I DRUGOMU ODNOWREMENNO.
13)iZ 12 LOTEREJNYH BILETOW, SREDI KOTORYH 4 WYIGRY[NYH, NA- UDA^U BERUT 6. kAKOWA WEROQTNOSTX TOGO, ^TO HOTQ BY ODIN IZ NIH WY- IGRY[NYJ.
14)w Q]IKE 20 [AROW S NOMERAMI 1; 2; : : : ; 20. nAUDA^U WYBIRAETSQ [ESTX [AROW. nAJTI WEROQTNOSTX TOGO, ^TO SREDI NIH ESTX [ARY S NOMERAMI 1 I 2.
15)bROSA@T 4 IGRALXNYE KOSTI. nAJTI WEROQTNOSTX TOGO, ^TO NA
NIH WYPADET PO ODINAKOWOMU ^ISLU O^KOW.
16)iMEETSQ PQTX OTREZKOW, DLINY KOTORYH RAWNY SOOTWETSTWENNO 1, 3, 5, 7, 9 EDINICAM. nAJTI WEROQTNOSTX TOGO, ^TO S POMO]X@ WZQTYH NAUDA^U TR<H OTREZKOW IZ DANNYH MOVNO POSTROITX TREUGOLXNIK.
17)iZ KOLODY KART (52 KARTY) NAUDA^U IZWLEKA@TSQ TRI KARTY. nAJTI WEROQTNOSTX TOGO, ^TO \TO BUDUT TROJKA, SEM<RKA, TUZ (W UKA- ZANNOM PORQDKE).
18)nA POLKE W SLU^AJNOM PORQDKE RASSTAWLENO 40 KNIG, SREDI KOTO- RYH NAHODITSQ TR<HTOMNIK a. s. pU[KINA. nAJTI WEROQTNOSTO TOGO, ^TO \TI TOMA STOQT W PORQDKE WOZRASTANIQ NOMERA SLEWA NAPRAWO, NO NE OBQZATELXNO RQDOM.
19)pRI NABORE TELEFONNOGO NOMERA ABONENT ZABYL DWE POSLEDNIE CIFRY I NABRAL IH NAUGAD, POMNQ TOLXKO, ^TO \TI CIFRY NE^<TNY I RAZNYE. nAJTI WEROQTNOSTX TOGO, ^TO NOMER NABRAN PRAWILXNO.
20)iZ OTREZKA [a; b] NAUGAD WYBRALI DWA ^ISLA. nAJTI WEROQTNOSTX TOGO, ^TO IH ^ASTNOE BOLX[E a+2 b, ESLI a = 1; b = 4.
21)sLU^AJNO WYBRAN TR<HZNA^NYJ TELEFONNYJ NOMER. ~EMU RAWNA WEROQTNOSTX TOGO, ^TO WSE CIFRY RAZLI^NYE.
22)bROSA@T DWE IGRALXNYE KOSTI. kAKOWA WEROQTNOSTX TOGO, ^TO SUMMA O^KOW NE MENX[E ^ETYR<H.
23)nAJTI WEROQTNOSTX TOGO, ^TO U SLU^AJNO WZQTOGO ^ETYR<HZNA^- NOGO ^ISLA KAVDAQ SLEDU@]AQ CIFRA MENX[E PREDYDU]EJ.
24)nA OTREZKE [a; b] NAUGAD WYBRALI DWA ^ISLA. nAJTI WEROQTNOSTX TOGO, ^TO IH PROIZWEDENIE MENX[E ab2 , ESLI a = 1; b = 5:
25)eSLI POWERNUTX LIST BUMAGI NA 180o, TO CIFRY 0, 1, 8 NE IZME- NQTSQ, CIFRY 6 I 9 PEREHODQT DRUG W DRUGA, A OSTALXNYE CIFRY TERQ@T
SMYSL. nAJTI WEROQTNOSTX TOGO, ^TO SLU^AJNO WZQTOE TR<HZNA^NOE ^IS- LO NE IZMENITXSQ PRI POWORODE LISTA BUMAGI NA 180o.
26)nA WOSXMI ODINAKOWYH KARTO^KAH NAPISANY ^ISLA 2, 4, 6, 7, 8, 11, 12, 13. nAUGAD BERUTXSQ DWE KARTO^KI. nAJTI WEROQTNOSTX TOGO, ^TO
76
OBRAZOWANNAQ IZ DWUH POLU^ENYH ^ISEL DROBX SOKRATIMA.
27)iZ OTREZKA [a; b] NAUGAD WYBRALI DWA ^ISLA. nAJTI WEROQTNOSTX TOGO, ^TO IH RAZNOSTX MENX[E LIBO RAWNA 3b , ESLI a = 0; b = 3.
28)dESQTX KNIG NA ODNOJ POLKE RASSTAWLQ@TSQ NAUGAD. nAJTI WERO- QTNOSTX TOGO, ^TO PRI \TOM TRI OPREDEL<NNYE KNIGI OKAVUTSQ POSTAW- LENNYMI RQDOM.
29)iZ OTREZKA [a; b] NAUGAD WYBRALI DWA ^ISLA. nAJTI WEROQTNOSTX TOGO, ^TO IH SUMMA BOLX[E, LIBO RAWNA 3a, ESLI a = 2; b = 5.
30)nATI WEROQTNOSTX TOGO, ^TO POSLE SLU^AJNOGO UPORQDO^EWANIQ
\LEMENTOW MNOVESTWA f1; 2; : : : ; ng ^ISLA 1, 2, 3 STOQT RQDOM W PORQDKE WOZRASTANIQ.
zADA^A 2. iGRA MEVDU A I B WED<TSQ NA SLEDU@]IH USLOWIQH: PER- WYH HOD WSEGDA DELAET A, ON MOVET WYIGRATX S WEROQTNOSTX@ p1, ESLI A NE WYIGRYWAET, TO HOD DELAET B I MOVET WYIGRATX S WEROQTNOSTX@ q1. eSLI B NE WYIGRYWAET, TO A DELAET WTOROJ HOD, KOTORYJ MOVET
PRIWESTI K EGO WYIGRY[U S WEROQTNOSTX@ p2. eSLI A WTORYM HODOM PROIGRYWAET, TO POBEDITELEM S^ITAETSQ B. nAJTI WEROQTNOSTX WYIG- RY[A DLQ A I DLQ B.
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p1 |
p2 |
q1 |
1 |
0.4 |
0.5 |
0.8 |
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2 |
0.5 |
0.4 |
0.7 |
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3 |
0.3 |
0.5 |
0.9 |
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4 |
0.9 |
0.7 |
0.9 |
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5 |
0.2 |
0.5 |
0.8 |
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6 |
0.8 |
0.9 |
0.6 |
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7 |
0.7 |
0.6 |
0.5 |
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8 |
0.1 |
0.3 |
0.7 |
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9 |
0.3 |
0.3 |
0.1 |
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10 |
0.8 |
0.5 |
0.3 |
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11 |
0.5 |
0.7 |
0.6 |
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12 |
0.2 |
0.5 |
0.7 |
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13 |
0.7 |
0.8 |
0.9 |
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14 |
0.6 |
0.5 |
0.2 |
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15 |
0.3 |
0.4 |
0.8 |
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p1 |
p2 |
q1 |
16 |
0.1 |
0.3 |
0.9 |
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17 |
0.4 |
0.3 |
0.6 |
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18 |
0.7 |
0.1 |
0.9 |
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19 |
0.2 |
0.5 |
0.7 |
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20 |
0.3 |
0.5 |
0.6 |
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21 |
0.9 |
0.8 |
0.7 |
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22 |
0.4 |
0.6 |
0.8 |
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23 |
0.2 |
0.3 |
0.8 |
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24 |
0.3 |
0.5 |
0.1 |
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25 |
0.9 |
0.7 |
0.6 |
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26 |
0.1 |
0.4 |
0.3 |
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27 |
0.7 |
0.2 |
0.5 |
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28 |
0.5 |
0.3 |
0.2 |
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29 |
0.1 |
0.6 |
0.4 |
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30 |
0.4 |
0.3 |
0.6 |
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zADA^A 3.
a) nA SKLADE GOTOWOJ PRODUKCII NAHODITSQ n IZDELIJ, SREDI KOTORYH k WYS[EGO KA^ESTWA. nAUDA^U WYBIRA@T m IZDELIJ. nAJTI WEROQTNOSTX
77
TOGO, ^TO SREDI NIH l IZDELIJ WYS[EGO KA^ESTWA.
1. |
n = 7; |
k = 4; m = 2; l = 1: |
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2. |
n = 14; k = 8; m = 4; l = 2: |
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3. |
n = 14; k = 7; m = 5; l = 3: |
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4. |
n = 7; |
k = 5; m = 3; l = 2: |
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5. |
n = 6; |
k = 4; m = 5; l = 1: |
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6. |
n = 12; k = 8; m = 6; l = 4: |
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7. |
n = 12; k = 6; m = 4; l = 2: |
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8. |
n = 9; |
k = 6; m = 3; l = 1: |
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9. |
n = 9; |
k = 7; m = 5; l = 3: |
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10. |
n = 8; |
k = 4; |
m = 3; |
l = 1: |
11. |
n = 8; |
k = 6; |
m = 3; |
l = 2: |
12. |
n = 10; |
k = 6; |
m = 4; |
l = 3: |
13. |
n = 10; |
k = 5; |
m = 3; |
l = 2: |
14. |
n = 10; |
k = 4; |
m = 5; |
l = 2: |
15. |
n = 10; |
k = 6; |
m = 4; |
l = 2: |
B) iZ n AKKAMULQTOROW ZA GOD HRANENIQ k WYHODQT IZ STROQ. nAUDA^U WYBIRA@T m AKKAMULQTOROW. oPREDELITX WEROQTNOSTX TOGO, ^TO SREDI
NIH l ISPRAWLENNYH. |
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16. |
n = 100; |
k = 9; |
m = 7; |
l = 4: |
17. |
n = 100; |
k = 8; |
m = 6; |
l = 3: |
18. |
n = 100; |
k = 7; |
m = 5; |
l = 3: |
19. |
n = 100; |
k = 6; |
m = 4; |
l = 2: |
20. |
n = 100; |
k = 5; |
m = 3; |
l = 1: |
21. |
n = 80; |
k = 10; |
m = 7; |
l = 4: |
22. |
n = 80; |
k = 9; |
m = 6; |
l = 3: |
23. |
n = 80; |
k = 8; |
m = 5; |
l = 2: |
24. |
n = 80; |
k = 7; |
m = 5; |
l = 3: |
25. |
n = 80; |
k = 6; |
m = 4; |
l = 2: |
26. |
n = 80; |
k = 5; |
m = 3; |
l = 2: |
27. |
n = 80; |
k = 4; |
m = 3; |
l = 2: |
28. |
n = 90; |
k = 10; |
m = 6; |
l = 2: |
29. |
n = 90; |
k = 20; |
m = 6; |
l = 3: |
30. |
n = 90; |
k = 10; |
m = 6; |
l = 2: |
zADA^A 4.
A) nA SKLADE NAHODITSQ n1 IZDELIJ, IZGOTOWLENNYH NA ZAWODE 1, n2 IZDELIJ - NA ZAWODE 2, n3 - NA ZAWODE 3. wEROQTNOSTX TOGO, ^TO DETALX, IZGOTOWLENNAQ NA ZAWODE 1, WYS[EGO KA^ESTWA, RAWNA p1. dLQ DETALEJ
78
IZGOTOWLENNYH NA ZAWODAH 2 I 3, \TI WEROQTNOSTI RAWNY p2 I p3. nAJTI WEROQTNOSTX TOGO, ^TO PRI PROWERKE NAUDA^U WZQTAQ DETALX OKAVETSQ WYS[EGO KA^ESTWA. pRI PROWERKE WZQTAQ DETALX OKAZALASX WYS[EGO KA- ^ESTWA. kAKOWA WEROQTNOSTX TOGO, ^TO ONA BYLA IZGOTOWLENA NA ZAWODE
2? 1. |
n1 = 10; n2 = 12; n3 = 18; p1 = 0; 7; p2 = 0; 8; p3 = 0; 6: |
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2. |
n1 = 12; n2 = 24; n3 = 14; p1 = 0; 9; p2 = 0; 7; p3 = 0; 9: |
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3. |
n1 = 8; |
n2 = 18; n3 = 22; p1 = 0; 8; p2 = 0; 9; p3 = 0; 6: |
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4. |
n1 = 20; n2 = 22; n3 = 12; p1 = 0; 5; p2 = 0; 6; p3 = 0; 8: |
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5. |
n1 = 24; n2 = 20; n3 = 16; p1 = 0; 6; p2 = 0; 8; p3 = 0; 5: |
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6. |
n1 = 14; n2 = 16; n3 = 20; p1 = 0; 8; p2 = 0; 9; p3 = 0; 7: |
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7. |
n1 = 15; n2 = 17; n3 = 19; p1 = 0; 6; p2 = 0; 9; p3 = 0; 9: |
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8. |
n1 = 20; n2 = 18; n3 = 12; p1 = 0; 9; p2 = 0; 7; p3 = 0; 8: |
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9. |
n1 = 16; n2 = 18; n3 = 10; p1 = 0; 8; p2 = 0; 7; p3 = 0; 6: |
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10. |
n1 = 10; |
n2 = 12; |
n3 = 20; |
p1 = 0; 7; |
p2 = 0; 8; |
p3 = 0; 9: |
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11. |
n1 = 20; |
n2 = 14; |
n3 = 18; |
p1 = 0; 9; |
p2 = 0; 8; |
p3 = 0; 8: |
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12. |
n1 |
= 18; |
n2 |
= 12; |
n3 |
= 16; |
p1 |
= 0; 8; |
p2 |
= 0; 8; |
p3 |
= 0; 7: |
13. |
n1 |
= 12; |
n2 |
= 20; |
n3 |
= 18; |
p1 |
= 0; 9; |
p2 |
= 0; 6; |
p3 |
= 0; 9: |
14. |
n1 |
= 8; |
n2 |
= 10; |
n3 |
= 10; |
p1 |
= 0; 7; |
p2 |
= 0; 8; |
p3 |
= 0; 6: |
15. |
n1 |
= 10; |
n2 |
= 8; |
n3 |
= 10; |
p1 |
= 0; 5; |
p2 |
= 0; 6; |
p3 |
= 0; 7: |
B) dWE PERFORATOR]ICY NABILI NA RAZNYH PERFORATORAH PO ODINA- KOWOMU KOMPLEKTU PERFOKART. wEROQTNOSTX TOGO, ^TO PERWAQ PERFORA- TOR]ICA DOPUSTILA O[IBKU, RAWNA p1, WTORAQ - p2. kAKOWA WEROQTNOSTX, ^TO PRI PROWERKE NAUDA^U WZQTAQ PERFOKARTA OKAZALASX S O[IBKOJ? kAKOWA WEROQTNOSTX, ^TO \TA PERFOKARTA BYLA NABITA PERWOJ PERFO-
RATO]ICEJ? |
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16. |
p1 = 0; 05; |
p2 = 0; 2: |
17. |
p1 = 0; 25; |
p2 = 0; 15: |
||||
18. |
p1 = 0; 15; |
p2 = 0; 1: |
19. |
p1 = 0; 1; |
p2 = 0; 5: |
||||
20. |
p1 = 0; 8; |
p2 = 0; 1: |
21. |
p1 = 0; 9; |
p2 = 0; 8: |
||||
22. |
p1 = 0; 9; |
p2 = 0; 7: |
23. |
p1 |
= 0; 9; |
p2 |
= 0; 6: |
||
24. |
p1 |
= 0; 6; |
p2 |
= 0; 9: |
25. |
p1 |
= 0; 7; |
p2 |
= 0; 9: |
26. |
p1 |
= 0; 8; |
p2 |
= 0; 7: |
27. |
p1 |
= 0; 9; |
p2 |
= 0; 8: |
28. |
p1 |
= 0; 3; |
p2 |
= 0; 2: |
29. |
p1 |
= 0; 1; |
p2 |
= 0; 3: |
30. |
p1 |
= 0; 6; |
p2 |
= 0; 4: |
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zADA^A 5.
A) pRIBOR SOSTOIT IZ n UZLOW. wEROQTNOSTX BEZOTKAZNOJ RABOTY W TE^ENIE GARANTIJNOGO SROKA DLQ KAVDOGO UZLA ODINAKOWA I RAWNA p. wYHOD IZ STROQ UZLOW NEZAWISIM DRUG OT DRUGA. nAJTI WEROQTNOSTX
79
TOGO, ^TO ZA UKAZANNYJ SROK OTKAVUT DWA UZLA, NE MENEE DWUH UZLOW.
1. |
n = 10; p = 0; 8: 2. |
n = 6; p = 0; 9: |
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3. |
n = 10; p = 0; 6: 4. |
n = 5; p = 0; 8: |
|||
5. |
n = 7; |
p = 0; 8: 6. |
n = 7; p = 0; 7: |
||
7. |
n = 4; |
p = 0; 9: 8. |
n = 5; p = 0; 9: |
||
9. |
n = 8; |
p = 0; 8: |
10. |
n = 8; |
p = 0; 6: |
11. |
n = 4; |
p = 0; 7: |
12. |
n = 6; |
p = 0; 6: |
13. |
n = 4; |
p = 0; 8: |
14. |
n = 8; |
p = 0; 7: |
15. |
n = 8; |
p = 0; 9: |
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|
B) wY^ISLITELXNOE USTROJSTWO SOSTOIT IZ 1000 \LEMENTOW, RABOTA@- ]IH NEZAWISIMO DRUG OT DRUGA. wEROQTNOSTX OTKAZA KAVDOGO \LEMENTA ZA SMENU RAWNA p. nAJTI WEROQTNOSTX TOGO, ^TO ZA SMENU OTKAVUT m
\LEMENTOW. |
|
|
|
|
|
16. |
m = 6; |
p = 0; 024: |
17. |
m = 2; p = 0; 005: |
|
18. |
m = 2; |
p = 0; 002: |
19. |
m = 3; p = 0; 0025: |
|
20. |
m = 6; |
p = 0; 022: |
21. |
m = 5; |
p = 0; 0015: |
22. |
m = 4; |
p = 0; 002: |
23. |
m = 4; |
p = 0; 021: |
W) tIRAV KNIGI 5000 \KZEMPLQROW. wEROQTNOSTX TOGO, ^TO W KNIGE IMEETSQ DIFEKT BRO[@ROWKI, RAWNA p. nATI WEROQTNOSTX TOGO, ^TO TI- RAV SODERVIT m NEPRAWILXNO SBRO[@ROWANNYH KNIG.
24. |
m = 6; |
p = 0; 002: |
25. |
m = 8; |
p = 0; 0006: |
26. |
m = 5; |
p = 0; 0001: |
27. |
m = 10; |
p = 0; 001: |
28. |
m = 7; |
p = 0; 0001: |
29. |
m = 9; |
p = 0; 0003: |
30. |
m = 10; |
p = 0; 002: |
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zADA^A 6.
A) bRIGADA RABO^IH ZA SMENU IZGOTOWLQET n DETALEJ. wEROQTNOSTX TOGO, ^TO KAVDAQ IZGOTOWLENNAQ DETALX WYS[EGO KA^ESTWA RAWNA p. kA- KOWA WEROQTNOSTX TOGO, ^TO ZA SMENU IZGOTOWLENNO m DETALEJ WYS[EGO
KA^ESTWA? |
|
|
|
1. |
n = 725; |
p = 0; 75: |
m = 525: |
2. |
n = 750; |
p = 0; 6: |
m = 625: |
3. |
n = 625; |
p = 0; 8: |
m = 570: |
4. |
n = 150; |
p = 0; 6: |
m = 75: |
5. |
n = 400; |
p = 0; 9: |
m = 165: |
6. |
n = 225; |
p = 0; 8: |
m = 165: |
80
7.n = 192; p = 0; 75: m = 150:
8.n = 245; p = 0; 25: m = 70:
9.n = 625; p = 0; 65: m = 370:
10. |
n = 600; |
p = 0; 6: |
m = 375: |
11. |
n = 300; |
p = 0; 75: |
m = 240: |
12. |
n = 400; |
p = 0; 9: |
m = 372: |
13. |
n = 400; |
p = 0; 8: |
m = 330: |
14. |
n = 800; |
p = 0; 4: |
m = 600: |
15. |
n = 800; |
p = 0; 5: |
m = 650: |
B) pRI USTANOWIW[EMSQ TEHNOLOGI^ESKOM PROCESSE ZAWOD WYPUSKAET W SREDNEM p% PRODUKCII PERWOGO SORTA. kAKOWA WEROQTNOSTQ TOGO, ^TO W PARTII IZ n IZDELIJ, PRO[ED[IH ^EREZ OTDEL TEHNI^ESKOGO KONTROLQ, KOLI^ESTWO IZDELIJ PERWOGO SORTA BUDET NE MENEE m1 I NE BOLEE m2?
16. |
n = 725; |
p = 65: |
m1 = 620; |
m2 = 680: |
||
17. |
n = 1000; |
p = 70: |
m1 = 652; |
m2 = 760: |
||
18. |
n = 625; |
p = 64: |
m1 = 400; |
m2 = 450: |
||
19. |
n = 300; |
p = 45: |
m1 = 75; |
m2 = 90: |
||
20. |
n = 225; |
p = 25: |
m1 = 45; |
m2 = 60: |
||
21. |
n = 400; |
p = 50: |
m1 = 190; |
m2 = 215: |
||
22. |
n = 625; |
p = 36: |
m1 = 225; |
m2 = 255: |
||
23. |
n = 300; |
p = 75: |
m1 = 215; |
m2 = 225: |
||
24. |
n = 600; |
p = 40: |
m1 = 210; |
m2 = 252: |
||
25. |
n = 400; |
p = 90: |
m1 = 345; |
m2 = 372: |
||
26. |
n = 100; |
p = 80: |
m1 = 72; |
m2 = 84: |
||
27. |
n = 150; |
p = 60: |
m1 |
= 78; |
m2 |
= 96: |
28. |
n = 200; |
p = 65: |
m1 |
= 0; |
m2 |
= 50: |
29. |
n = 400; |
p = 55: |
m1 |
= 100; |
m2 |
= 300: |
30. |
n = 400; |
p = 60: |
m1 |
= 50; |
m2 |
= 100: |
zADA^A 7.
A) wY^ISLITELXNOE USTROJSTWO SOSTOIT IZ n NEZAWISIMO RABOTA@- ]IH \LEMENTOW. wEROQTNOSTX WYHODA IZ STROQ KAVDOGO \LEMENTA ODI- NAKOWA I RAWNA p. sOSTAWITX ZAKON RASPREDELENIQ SLU^AJNOJ WELI^INY X - ^ISLA OTKAZAW[IH \LEMENTOW. pOSTROITX GRAFIK FUNKCII RASPRE- DELENIQ F (x). nAJTI M(x) I D(x).
81
1. |
n = 2; p = 0; 4: |
2. |
n = 3; p = 0; 12: |
||
3. |
n = 4; p = 0; 15: 4. |
n = 2; p = 0; 3: |
|||
5. |
n = 2; p = 0; 25: 6. |
n = 3; p = 0; 75: |
|||
7. |
n = 3; p = 0; 4: |
8. |
n = 4; p = 0; 2: |
||
9. |
n = 4; |
p = 0; 1: |
10. |
n = 3; p = 0; 15: |
|
11. |
n = 3; |
p = 0; 2: |
12. |
n = 2; |
p = 0; 2: |
13. |
n = 2; |
p = 0; 1: |
14. |
n = 3; |
p = 0; 1: |
15. |
n = 4; |
p = 0; 5: |
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B) pRI OBRABOTKE DETALEJ NA STANKE AWTOMATE WEROQTNOSTX WYHO- DA RAZMEROW OBRABATYWAEMYH DETALEJ ZA GRANICY "DOPUSKA" POSTOQN- NA I RAWNA p. dLQ KONTROLQ KA^ESTWA OTBIRA@T n DETALEJ. pOSTROITX GRAFIK FUNKCII RASPREDELENIQ F(x) SLU^AJNOJ WELI^INY X - ^ISLA NESTANDARTNYH DETALEJ. nAJTI M(X), D(X). oPREDELITX NAIWEROQT-
NEJ[EE ^ISLO NESTANDARTNYH IZDELIJ.
p = 0; 15: p = 0; 25: p = 0; 1: p = 0; 2: p = 0; 1: p = 0; 15: p = 0; 1:
zADANA PLOTNOSTX RASPREDELENIQ WEROQTNOSTEJ f(x). oPREDELITX KO- \FFICIENT a, FUNKCI@ RASPREDELENIQ F(x), M(X), D(X), WEROQTNOSTX POPADANIQ SLU^AJNOJ WELI^INY X W INTERWAL ( ; ). pOSTROITX GRA-
FIK FUNKCII f(x) I F (x). |
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1. |
|
1; f(x) = 8 (a |
; x)2; x 2 |
[;1; 1]; |
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= 0; = |
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2 |
: |
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x |
62 |
; |
1; 1]: |
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< 0; |
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[ |
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2. |
|
3 |
; f(x) = 8 |
a sin 2x; |
|
x |
2 |
[ |
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; ]; |
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= ; = |
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2 |
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2 |
4 |
: |
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|
x |
26 |
[2 |
; ]: |
|||
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< 0; |
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3. |
= 1; = 2; f(x) = 8 a(x + 1); x 2 [0; 3]; |
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: |
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x |
26 |
[0; 3]: |
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< 0; |
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82