It is believed that approximately 75% of American youth now have private health insurance due to the health care law. Suppose this is true, and let X equal the number of American youth in a random sample of n = 15 with private health insurance. (a) How is X distributed? (b) Find the probability that X is at least 10. Hint: You may want to use Excel. (c) Find the probability that X is at most 10. Hint: You may want to use Excel. (d) Find the probability that X is equal to 10. (e) Give the mean, variance, and standard deviation of X.

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2. It is believed that approximately 75% of American youth now have private health insurance
due to the health care law. Suppose this is true, and let X equal the number of American
youth in a random sample of n =
15 with private health insurance.
(a) How is X distributed?
(b) Find the probability that X is at least 10. Hint: You may want to use Excel.
(c) Find the probability that X is at most 10. Hint: You may want to use Excel.
(d) Find the probability that X is equal to 10.
(e) Give the mean, variance, and standard deviation of X.
Transcribed Image Text:2. It is believed that approximately 75% of American youth now have private health insurance due to the health care law. Suppose this is true, and let X equal the number of American youth in a random sample of n = 15 with private health insurance. (a) How is X distributed? (b) Find the probability that X is at least 10. Hint: You may want to use Excel. (c) Find the probability that X is at most 10. Hint: You may want to use Excel. (d) Find the probability that X is equal to 10. (e) Give the mean, variance, and standard deviation of X.
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