# Question

Using Probabilities for Unusual Events

a. Find the probability of getting exactly three cars that fail among six cars tested.

b. Find the probability of getting three or more cars that fail among six cars tested.

c. Which probability is relevant for determining whether three is an unusually high number of failures among six cars tested: the result from part (a) or part (b)?

d. Is three an unusually high number of failures? Why or why not?

a. Find the probability of getting exactly three cars that fail among six cars tested.

b. Find the probability of getting three or more cars that fail among six cars tested.

c. Which probability is relevant for determining whether three is an unusually high number of failures among six cars tested: the result from part (a) or part (b)?

d. Is three an unusually high number of failures? Why or why not?

## Answer to relevant Questions

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