Percent of investors invested in high-tech stocks


A poll conducted by Gallup Canada on June 21, 2000, showed that 40 percent of investors invested in high-tech stocks. Suppose 10 investors were selected randomly on that day.

(a) What is the probability that exactly two of the selected investors would have invested in high-tech stocks?

(b) What is the probability that at most 4 would have invested in high-tech stocks?

(c) If you select 50 investors randomly, how many investors would you expect to invest in high-tech stocks?

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Basic Statistics: Percent of investors invested in high-tech stocks
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