In a large population of adults, the mean IQ is 110 with a standard deviation of 19. Suppose 45 adults are randomly selected for a market research campaign. (Round to 2 decimal places for all z-values and round all other answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normal ◆ (b) The distribution of the sample mean IQ is approximately normal (c) The probability that the sample mean IQ is less than 109 is 0.3632 (d) The probability that the sample mean IQ is greater than 109 is (e) The probability that the sample mean IQ is between 109 and 113 is with a mean of 110 and standard deviation of 2.8324

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