Most female black bears have their first mating between the ages of 3 and 5 year
ID: 3377577 • Letter: M
Question
Most female black bears have their first mating between the ages of 3 and 5 years old. From a large sample of female black bears, we construct the following distribution, for X, the size of a litter.
A) compute the expected size of a litter B) compute the probability that a litter is at most 2 cubs
Then, suppose that we select 10 litters at random. let Y be the number of litters with at least 2 cubs. A) what is the expected value of the random variable Y? B) what is the probability that Y is at most 3? C) what is the probability that 3 of the litters have exactly one cub?
Size of litter Probability 1 0.105 2 0.512 3 0.330 4 0.052 5 0.001Explanation / Answer
Most female black bears have their first mating between the ages of 3 and 5 year
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