d) A telemarketer will give an average of 4 calls in an hour. Find the probability that he will give at least 2 calls in 90 minutes' time.

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i need the answer for question d. tq
d)
A telemarketer will give an average of 4 calls in an hour. Find the probability that he
will give at least 2 calls in 90 minutes' time.
The boxes produced by a machine have weights that are distributed normally with a
mean of 32 grams. Given that the probability that the weight of a box is more than
45 grams is 0.046, find the probability that its weight is less than 28 grams.
e)
Transcribed Image Text:d) A telemarketer will give an average of 4 calls in an hour. Find the probability that he will give at least 2 calls in 90 minutes' time. The boxes produced by a machine have weights that are distributed normally with a mean of 32 grams. Given that the probability that the weight of a box is more than 45 grams is 0.046, find the probability that its weight is less than 28 grams. e)
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