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    Argosy University/ Phoniex University/
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Category > Management Posted 21 Oct 2017 My Price 6.00

Binomial Random Variable

1. Mean and Standard Deviation of a Binomial Random Variable

Mortality For three randomly selected 20-year-olds, let X denote the number who are still alive at age 65. Find the mean and standard deviation of X.

2. Using Technology to Obtain Binomial Probabilities

Mortality Consider once again the mortality illustration discussed in Example 5.25. Use Minitab, Excel, or the TI-83/84 Plus to determine the probability that exactly two of the three people will be alive at age 65.

Example 5.25 Obtaining Binomial Probabilities

Mortality According to tables provided by the U.S. National Center for Health Statistics in Vital Statistics of the United States, there is roughly an 80% chance that a person aged 20 will be alive at age 65. Suppose that three people aged 20 are selected at random. Find the probability that the number alive at age 65 will be

a. exactly two.

b. at most one.

c. at least one.

d. Determine the probability distribution of the number alive at age 65.

Answers

Maurice Tutor
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Status NEW Posted 21 Oct 2017 02:10 PM My Price 6.00

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