Question

(©) anywhere from 80 lo 120 hours.
3.53 The tread wear (in thousands of kilometers) that car owners get with a cer-
tain kind of tire is a random variable whose probability density is given by
for x > 0
$(x) = 30
0
lor X SO
Find the probabilites that one of these tires will last
(a) at most 18,000 kilometers;
(b) anywhere froni 27,000 to 36,000 kilometers;
(c) at least 48,000 kilometers.​

Answer 1

Answer:

45

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