Question: An American Society of Investors survey found 30 of individual

An American Society of Investors survey found 30% of individual investors have used a discount broker. In a random sample of nine individuals, what is the probability:
a. Exactly two of the sampled individuals have used a discount broker?
b. Exactly four of them have used a discount broker?
c. None of them has used a discount broker?


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  • CreatedDecember 10, 2014
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