The probability distribution shown below represents the number of trips of five nights ...
The probability distribution shown below represents the number
of trips of five nights
or more that American adults take per year. (That is, 6% do not
take any trips lasting
five nights or more, 70% take one trip lasting five nights or more,
etc.).
| Number of Trips X | Probability | |
| 0 | 0.06 | |
| 1 | 0.70 | |
| 2 | 0.20 | |
| 3 | 0.03 | |
| 4 | 0.01 | |
| 1.00 |
(a) Is this an example of a discrete or continuous probability
distribution?
(b) What is the expected value (mean) number of trips
taken?
(c) What is the standard deviation of the number of trips
taken?
(d) What is probability of that an American will take three or more
trips?
Homework Answers
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The probability distribution shown below represents the number
of trips of five nights
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