A consumer organization estimates that over a 1-year period 17% of cars will need to be repaired once, 7% will need repairs twice, and 4% will require three or more repairs. Let X denote the number of repairs. We have the following information
X 0 1 2 3 or more
P(X) ? .17 .07 .04
What is the probability that a car chosen at random will need no repairs?