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QUESTION
The Arc electric company had an income of 101 million dollars last year. Suppose that mean income for the firms in the industry for a year is 95...
The Arc electric company had an income of 101 million dollars last year. Suppose that mean income for the firms in the industry for a year is 95 million dollars with a standard deviation of 3 million. If incomes for the industry are distributed normally, what is the probability that a randomly selected firm will earn less than Arc?
