Question

An urn contains three red balls numbered 1, 2, 3; three white balls numbered 4, 5, 6; and four black balls numbered 7, 8, 9, 10. A ball is drawn from the urn. (a) What is the probability that it is red?

Answer 1

The probability of drawing a red ball from the urn can be calculated by dividing the number of red balls by the total number of balls.

Step-by-step explanation:

There are a total of 10 balls in the urn, with 3 red balls. The probability of drawing a red ball can be calculated by dividing the number of red balls by the total number of balls:

Probability of drawing a red ball = Number of red balls / Total number of balls = 3 / 10 = 0.3

So, the probability of drawing a red ball is 0.3, or 30%.