Managerial Statistics Practice test


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1) A frequency distribution provides the following information
2) The mean is a measure of
3) Which of the following is not a property of a binomial experiment?
4) Which one of these variables is a binomial random variable?
5) The probabilities of X, Y, Z becoming managers are 4/9, 2/9 and 1/3 respectively. The probability that the bonus scheme will be introduced, if X, Y , Z becomes managers are, 3/10, 1/2, and 4/5 respectively. If the bonus scheme has been introduced, what is the prob. that a manager appointed was X
6) Consider the following data: 1, 7, 3, 3, 6, 4
the mean and median for this data are
7) If two events (both with probability greater than 0) are mutually exclusive, then
8) An experiment consists of making 80 telephone calls in order to sell a particular insurance policy. The random variable in this experiment is a
9) which of the following is a correct statement?
10) If you are told a sample has a mean of 19 and a variance of 0, what must you conclude?

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