Standard deviation of distribution

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Reference no: EM1319703

A guide to the development and use of the Myers-Briggs Type Indicators by Myers and McCaully, it was reported that approximately 45% of all university professors are extroverted. Suppose we have classes with six different professors

a. What is the probability that all six are extroverts?

b. What is the probability that none of the professors in an extrovert?

c. What is the probability that atleast two of the professors are extroverts?

d. In a group of six professors selected at random, what is the expected number of extroverts? What is the standard deviation of the distribution?

Reference no: EM1319703

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