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According to ars technica HP is the leading company in

According to ars technica, HP is the leading company in the United States in PC sales with about 27% of the market share. Suppose a business researcher randomly selects 130 recent purchasers of PCs in the United States.

a. What is the probability that more than 39 PC purchasers bought an HP computer?

b. What is the probability that between 28 and 38 PC purchasers (inclusive) bought an HP computer?

c. What is the probability that fewer than 23 PC purchasers bought an HP computer?

d. What is the probability that exactly 33 PC purchasers bought an HP computer?

a. What is the probability that more than 39 PC purchasers bought an HP computer?

b. What is the probability that between 28 and 38 PC purchasers (inclusive) bought an HP computer?

c. What is the probability that fewer than 23 PC purchasers bought an HP computer?

d. What is the probability that exactly 33 PC purchasers bought an HP computer?

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