Question

В среднем из каждых 50 поступивших в продажу аккумуляторов 47 аккумуляторов заряжены. Найдите вероятность того, что выбранный в магазине наудачу аккумулятор не заряжен.

Answer 1

Решение:

Найдем вероятность выбора не заряженного аккумулятора по формуле P = m/n, где m = 50-47 = 3 – число благоприятных исходов (выбор не заряженного аккумулятора); n = 50 – общее число исходов. Получаем значение искомой вероятности: P= 3/50=0,06  

Ответ:0,06

Answer 2

Probability of selecting an uncharged battery

To find the probability of selecting an uncharged battery, we need to determine the proportion of uncharged batteries among the total number of batteries available for sale.

According to the given information, out of every 50 batteries that are put up for sale, 47 of them are charged. This means that 3 out of 50 batteries are uncharged.

To calculate the probability of selecting an uncharged battery, we divide the number of uncharged batteries by the total number of batteries:

Probability of selecting an uncharged battery = Number of uncharged batteries / Total number of batteries

In this case, the probability of selecting an uncharged battery is:

Probability of selecting an uncharged battery = 3 / 50

Therefore, the probability of randomly selecting an uncharged battery from the store is 3/50.