Question

A bag contains several balls. There are 8 red balls, 6 yellow balls, 7 green balls and 2purple balls. If you pull out one ball from the bag, the probability, as a percentage,that you get a red or purple ball is __%.Type your answer in the box provided. Round your answer to the nearest tenth of apercent.

Answer 1

8 red balls

6 yellow balls

7 green balls

2 purple balls

Total balls: 23

The probability of getting a red or a purple ball is:

P(red or purple) = P(red) + P(purple)

But:

P(red) = (# of red balls) / Total = 8/23

P(purple) = (# of purple balls) / Total = 2/23

Then:

P(red or purple) = 8/23 + 2/23 = 10/23 = 0.43478

In percentage form, to the nearest tenth: 43.5%