Question

В ящике лежат 20 шаров различного цвета: 2 красных, 4 синих, 5 черных, остальные белые. Найти вероятность извлечение шара каждого цвета.

Answer 1

2+4+5=11 20-11=9 белых

Answer 2

Finding the Probability of Drawing Each Color Ball

To find the probability of drawing each color ball from the box, we need to calculate the ratio of the number of balls of each color to the total number of balls in the box.

Given that there are 20 balls in the box, with 2 red, 4 blue, 5 black, and the rest white, we can calculate the probability as follows:

1. Probability of drawing a red ball: - Number of red balls: 2 - Total number of balls: 20 - Probability of drawing a red ball = 2/20 = 1/10.

2. Probability of drawing a blue ball: - Number of blue balls: 4 - Total number of balls: 20 - Probability of drawing a blue ball = 4/20 = 1/5.

3. Probability of drawing a black ball: - Number of black balls: 5 - Total number of balls: 20 - Probability of drawing a black ball = 5/20 = 1/4.

4. Probability of drawing a white ball: - Number of white balls: 20 - (2 + 4 + 5) = 9 - Total number of balls: 20 - Probability of drawing a white ball = 9/20.

Please note that the probability of drawing a white ball is calculated by subtracting the sum of the number of balls of the other colors from the total number of balls.

Therefore, the probabilities of drawing each color ball are as follows: - Red: 1/10 - Blue: 1/5 - Black: 1/4 - White: 9/20.

Please let me know if there's anything else I can help you with!