Use the information in the following table based upon one year of data for all of the quiz questions.

Intersection	Total Crashes	Entering ADT
A	19	30,000
B	22	25,000
C	17	21,000
D	22	22,000
E	19	28,000
F	14	18,000
G	18	20,000
H	17	12,000
I	20	15,000
J	25	17,000

1. What is the crash rate for intersection A?

2. What is the average crash rate for the ten intersections?

3. What is the average ADT?

4. Calculate M.