A brokerage survey reports that 28% of all individual investors have used a discount broker (one...

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A brokerage survey reports that 28% of all individual investors have used a discount broker (one...

A brokerage survey reports that

28%

of all individual investors have used a discount broker (one that does not charge the full commission). If a random sample of

125

individual investors is taken, approximate the probability that at most

34

have used a discount broker. Use the normal approximation to the binomial

math Statistics-And-Probability

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Answer 1

Answer #1

Normal opfhoximation of Binomial Eve 25 4_02 0.28 -- 4 -p P ) -0.28 0.22 z du = nona 125x0.28 -35 - 4 Standard deviation [nog please up vote

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Answer 2

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A brokerage survey reports that 28% of all individual investors have used a discount broker (one...

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