Question

В роддоме в палате лежат 3 беременных женщины. Вероятность рождения близнецов равна 0,02 . Найти вероятность того, что хотя бы одна женщина родит близнецов. Результат округлить до тысячных.

Answer 1

Вероятность того, что родятся близнецы 0,02:3=0,006

Answer 2

Calculation of the Probability

To find the probability that at least one woman will give birth to twins, we can use the complement rule. The complement rule states that the probability of an event not occurring is equal to 1 minus the probability of the event occurring.

Given: - There are 3 pregnant women in the hospital room. - The probability of a woman giving birth to twins is 0.02.

Let's calculate the probability that none of the women will give birth to twins and then subtract it from 1 to find the probability that at least one woman will give birth to twins.

The probability that a woman will not give birth to twins is 1 - 0.02 = 0.98.

The probability that none of the women will give birth to twins is 0.98 * 0.98 * 0.98 = 0.941192.

Now, let's find the probability that at least one woman will give birth to twins by subtracting the probability of none of the women giving birth to twins from 1:

Probability of at least one woman giving birth to twins = 1 - 0.941192 = 0.058808 (rounded to three decimal places).

Therefore, the probability that at least one woman will give birth to twins is approximately 0.059.