Question

There is 0.3 probability that a group of insured motorists have an accident in a decade.

If there are 640 insured motorists, what is the mean number of accidents in a decade?

Answer 1

192

Explanation:

to find the mean you have to use this formula: mean= N(total number of trials) times P( probability of "success")

n=640

p=0.3

640x0.3= 192