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A recent study found that 19% of people (ages 16 and older) in the United States own an e-reader. You randomly select four people (ages 16 and older) and ask them whether they own an e-reader. Construct a probability distribution for the random variable x. Then graph the distribution.
a. Find the binomial probability for each value of the random variable x.
b. Organize the values of x and their corresponding probabilities in a table.
c. Use a histogram to graph the binomial distribution. Then describe its shape.
d. Are any of the events unusual? Explain. |
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