DessB
Answered

Number of cars

0

1

2

3

4

Probability

0.03

0.13

0.70

0.10

0.04


Allyn surveyed the teachers she works with at GCA to find out how many cars they own. She created a provability distribution which is displayed below. What is the average number of cars owned by each teacher? (You must show all work to receive full credit.)

Verified Answer :

MissPhiladelphia

to solve the  average number of cars owned by each teacher, multiply the number of cars to its corresponding probabilty and add them up. 
ave = (0 0.03) + ( 1 0.13) + ( 2 0.70) + ( 3 0.10) + ( 4 * 0.04)ave = 0 + 0.13 + 1.40 + 0.30 + 0.16ave = 1.99 or about 2 cars is the average number of cars owned by each teacher