Repairs again You used the Multiplication Rule to calculate repair probabilities for your cars in Exercise 29.  a) What must be true about your cars in order to make that approach valid?  b) Do you...

Repairs again You used the Multiplication Rule to calculate repair probabilities for your cars in Exercise 29.

 a) What must be true about your cars in order to make that approach valid?

 b) Do you think this assumption is reasonable? Explain.

Exercise 29

More repairs Consider again the auto repair rates described in Exercise 27. If you own two cars, what is the probability that  a) neither will need repair?  b) both will need repair?  c) at least one car will need repair?