Assume that females have pulse rates that are normally distributed with a mean of 74 beats per min and a standard deviation of 12.5 beats per min. If 9 adults are randomly selected, find the probability that they have pulse rates with a mean less than 80 beats per min. Hint: Use the Central limit theorem. O 0.0749 O 1.44 O 0.5 O 0.9251

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