Question

A jar contains 3 red, 4 blue, and 2 white marbles. What is the probability that a marble drawn at random is not red?

Answer 1

2/3 is the probability that a marble drawn at random is not red.

Answer 2

Probability that a marble drawn at random is not red =
`(2)/(3)`.

Explanation:

Given : A jar contains 3 red, 4 blue, and 2 white marbles.

To find : What is the probability that a marble drawn at random is not red.

Solution : We have given that

Red marbles = 3.

White marbles = 2.

Blue marbles = 4

Total marbles = 9

Marbles that are not red = white + blue =2+4 = 6.

Probability that a marble drawn at random is not red =
`(Number\ of\ marbles\ not\ red)/(Total\ that\  number\ of\ marbles)`.

Probability that a marble drawn at random is not red =
`(6)/(9)`.

Probability that a marble drawn at random is not red =
`(2)/(3)`.

Therefore, Probability that a marble drawn at random is not red =
`(2)/(3)`.