Question

В ящику знаходиться 45 кульок, з яких 17 білих. Загубили дві не білих кульки. Яка ймовірність того, що вибрана навмання одна кулька буде білою? С условием пж

Answer 1

в ящику було 45 кульок, 2 загубили, залишилось 43, з них:

17 - білих

43-17= 26 - не білих

17/43= 39,5% - ймовірність того, що вибрана навмання одна кулька буде білою

Answer 2

Calculating the Probability of Drawing a White Ball

To calculate the probability of randomly drawing a white ball from the box, we can use the following formula:

Probability = (Number of favorable outcomes) / (Total number of possible outcomes)

In this case, the number of favorable outcomes is the number of white balls, and the total number of possible outcomes is the total number of balls in the box.

Given Information

- Total number of balls in the box: 45 - Number of white balls: 17 - Two non-white balls are lost

Calculation

To calculate the probability of drawing a white ball, we need to adjust the total number of balls in the box due to the lost non-white balls.

Total number of balls after the loss = 45 - 2 = 43

Now, we can calculate the probability:

Probability = (Number of white balls) / (Total number of balls after the loss)

Probability = 17 / 43

Probability ≈ 0.3953

So, the probability of randomly drawing a white ball from the box is approximately 0.3953 or 39.53%.