10. Bitta smenada stanokning ishlamay qolishi ehtimoli 0,05 ga teng. Uchta
smenada stanokning ishlab turishi ehtimolini toping.
11. Tanga birinchi marta “gerb” tomoni bilan tushguncha tashlanadi.
Tashlashlar sonining juft son bo’lishi ehtimolini toping.
12. A, B, C hodisalarning juft-juft bog’liq emasligidan, ularning birgalikda
bog’liq emasligi kelib chiqmasligini ko’rsatadigan masala tuzing.
13. Otilgan torpedoning kemani cho’ktirib yuborish ehtimoli 0,5 ga teng.
Agar kemani cho’ktirib yuborish uchun bitta torpedoning mo’ljalga tegishi yetarli
bo’lsa, 4 ta torpedoning kemani cho’ktirib yuborishi ehtimolini toping.
14. Elektr zanjiriga erkli ishlaydigan 3 ta element ketma-ket ulangan.
Birinchi, ikkinchi va uchinchi elementlarning buzilish ehtimollari mos ravishda
quyidagiga teng:
2
,
0
;
15
,
0
;
1
,
0
3
2
1
=
=
=
p
p
p
. Zanjirda elektr tok bo’lmasligi
ehtimolini toping.
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