Question

Вероятность выиграть по одному лотерейному билету равна 1/7 найти вероятность по двум билетам из 6. Решить формулой бернули

Answer 1

Смотри фото в приложенном файле

Answer 2

Probability Calculation Using the Bernoulli Formula

To find the probability of winning with two lottery tickets out of six, we can use the Bernoulli formula. The formula for the probability of winning at least once in multiple trials is:

P(X>=1) = 1 - P(X=0)

Where: - P(X>=1) is the probability of winning at least once. - P(X=0) is the probability of not winning at all.

Applying the Bernoulli Formula

The probability of winning with one lottery ticket is 1/7. Therefore, the probability of not winning with one ticket is 1 - 1/7 = 6/7.

Using the Bernoulli formula, the probability of not winning with two tickets out of six is: P(X=0) = (6/7)^2 = 36/49.

Therefore, the probability of winning at least once with two tickets out of six is: P(X>=1) = 1 - 36/49 = 13/49.

So, the probability of winning at least once with two lottery tickets out of six is 13/49.