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Question - Sports and Leisure Suppose the number of rides that a visitor enjoyed at Disney World during a day is a random variable with probability distribution given in the table below.
x
5
6
7
8
9
10
11
12
p(x)
0.04
0.07
0.09
0.12
0.20
0.30
0.13
0.05
a. Find the mean number of rides for a Disney World visitor.
b. Find the variance and standard deviation of the number of rides for a Disney World visitor.
c. Find the probability that the number of rides for a randomly selected Disney World visitor is within one standard deviation of the mean. Write a Solution Trail for this problem.
d. Find the probability that the number of rides for a randomly selected Disney World visitor is less than one standard deviation above the mean.
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