Question

A bag with 8 marbles has 4 yellow marbles, 3 blue marbles, and 1 red marble. A marble is chosen from the bag at random. What is the probability that it is yellow or blue?

Answer 1

Explanation:

Solution:

Given,

• No. of total marbles= 8
• No. of yellow marble=4
• No. of blue marble= 3
• No. of red marble= 1

So,

n(S) = 8

n(E) = 4+3 = 7

Here,

P(getting blue or yellow marble)

`(n( e))/(n(s))`

= 7 /8

Therefore , probability of getting blue or yellow marble is 7/8.