A Wendy's manager performed a study to determine a probability distribution for the number of people, X
Question:
A Wendy's manager performed a study to determine a probability distribution for the number of people, X< waiting in line during lunch. The results were as follows:
Xp(X)X*p(X)
0......................................0.015
1......................................0.125
2......................................0.246
3......................................0.334
4......................................0.210
5......................................0.070
(a) Verify that this is a discrete probability distribution.
(b) Compute and interpret the mean of the random variable X.
(c) Compute the standard deviation of the random variable X?
(d) What is the probability that 4 people are waiting in line for lunch?
(e) What is the probability that at least 4 people are waiting in line for lunch? Would this be unusual? Explain.
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Step by Step Answer:
a It is a discrete probability distribution as sum e...View the full answer
