Question

There are 9 balls in a bag. 6 are blue, 3 are red. jenny pulls two balls out without replacement.

a) what is the probability of picking exactly one blue ball?
b) what is the probability of picking at least one blue ball?​

Answer 1

You want to find out the number of blue balls so what you do is
No of blue balls/ total number of balls in a bag
6/9= 0.7(1dp)