Question

The probability distribution shows the probability owning multiple vehicles among 100 families polled. What is the probability that a family has more than 3 cars among the 100 families polled? Enter your answer, as a decimal, in the box.
Vehicles in Family
0.50
0.45 . ###
0.40 . ###
0.35 . ### . ###
0.30 . ### . ###
0.25 . ### . ###
0.20 . ### . ###
0.15 . ### . ###
0.10 . ### . ### . ###
0.05 . ### ### . ### . ### . ###
0.00 .  1 .     2 .     3 .     4 .      5
Number of Vehicles

Answer 1

You have, on the bottom the number of cars and on the left the corresponding probability.

The probability of having 4 cars is 0.05; the probability of having 5 cars is 0.05 again.

Therefore, the probability of having more than 3 cars is P(4) + P(5) = 0.10 which corresponds to 10%.

The correct answer is 0.10