Eating out. A survey asked 849 people how many times per week they dine out at a restaurant. The results are presented in the following table.
Number of Times |
Frequency |
0 |
116 |
1 |
232 |
2 |
246 |
3 |
146 |
4 |
54 |
5 |
23 |
6 |
26 |
7 |
6 |
Consider the 849 people to be a population. Let X be the number of times per week a person dines out for a person sampled at random from this population.
a.) compute the probability distribution table.
b.) Find the probability that a person dines out exactly 2 times.
c.) Find the probability that a person dines out at least 5 times.
d.) Find the probability that a person dines out more than 2 times.
e.) Find the probability that a person dines out between 3 and 6 times.
f.) Compute the mean.
g.) Compute the standard deviation.
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