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QUESTION
a survey of stock market investors revealed 30 % of individual investors have used a discount broker. i a random sample of nine individual investors....
a survey of stock market investors revealed 30 % of individual investors have used a discount broker. i a random sample of nine individual investors.
1). What is the probability that exactly two of the individual investors have used a broker discount?
2). What is the probability tow or three of the individual investors have used a discount broker P(2<=x<=3)?
3). what is the mean and the standard deviation for the distribution?
