The duration of a random smile (in seconds) of an 8-week-old baby can be modeled by a uniform distribution with a = 0 and b = 23 seconds. What is the probability a randomly chosen smile of an 8-week-old baby lasts between 2 and 18 seconds?
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It is uniform? Then between 2 and 18 is 16/23 = .69565
1 answer