A consumer organization estimates that over a 1-year period 17% of cars will need to be repaired

Question:

A consumer organization estimates that over a 1-year period 17% of cars will need to be repaired only once, 7% will need repairs exactly twice, and 4% will require three or more repairs. What is the probability that a car chosen at random will need
a) No repairs?
b) No more than one repair?
c) Some repairs?

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