Question

2. A vendor has 15 helium balloons for sale: 7 are yellow, 5 are red, and 3 are

green. A balloon is selected at random and sold. If the balloon sold is yellow,
what is the probability that the next balloon selected at random, is also yellow?​

Answer 1

0.4286

Explanation:

-Initially, there are 15 balls and 1 yellow ball is sold

-Total number of balls remaining is:

=14balls -1 ball=14 balls

-Total number of yellow balls remaining is:

=7yellow -1 yellow=6yellow

#the probability that the next balloon selected at random, is also yellow is:

`P(y)=(no \ of \ yellow)/(total \ remaining)\\\\=(6)/(14)\\\\=0.4286`

Hence, the probability that the next ball is yellow is 0.4286