Question

9:17 LTE O Done 22 of 34 - 4 - 7. A computer salesman averages 1.50 sales per week. Use the Poisson distribution to find the probability that in a randomly selected week the number of computers sold is at least 1 (PCX 1)). Show the result of calculations and circle one of the multiple choice answers. (6 points) M=20.0 Mf 20.0 T = 0.02 A) 0.7769 B) - 0.6958 C) 0.8536 D) 0.2231 Use Normal Distribution to solve problems 8 - 10 8. Assume that variable X has a normal distribution with mean u = 100 and standard deviation o = 5. Find the probability that X is between 97 and 105. Draw diagram for normal distribution, define the desired probability and circle one of the multiple choice answers. (6 points) A) 0.8413 B) 0.6826 C) 0.5670 D) 0.1587

Answer 1

We can do only one question according to HomeworkLib policy

This is a question of Poisson distribution with

Mean = 1.50

For a Poisson Distribution

P(X = 1) = P(X > 1) = 1 - P(X <1) P(X > 1) = 1 - P(X=0) e-1.51.50 P(X > 1) 0! P(X > 1) = 1 -0.2231 P(X > 1) = 0.7769

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Option A is correct answer