Задача 12

[Здравко 99]

Screenshot_20221219-164516_Messenger.jpg (60 KiB) Прегледано 1273 пъти

[peyo]

Това ми прилича на задача за binomila distribution с q = 1/4 и n = 30
https://en.wikipedia.org/wiki/Binomial_distribution

Тогава = [tex]f(10,30,1/4) = {30 \choose 10} (1/4)^{10}(1-1/4)^{(30-10)}[/tex]

https://www.wolframalpha.com/input?i=%7B30+%5Cchoose+10%7D+%281%2F4%29%5E%7B10%7D%281-1%2F4%29%5E%7B%2830-10%29%7D

б) сумираме горното за k = 10,11,12