# Statistics Permutations

*label*Mathematics

*timer*Asked: Mar 22nd, 2015

**Question description**

it has been reported that 25% of all cars on the highway are traveling at speeds in excess of 70mph. If the speeds of 7 random automobiles are measured via radar:

A-what is the probability thay exactly 3 cars are speeding?

B-prob at least one car going over 70