Assume that females have pulse rates that are normally distributed with a mean of u=73.0 beats per minute and a standard deviation of o = 12.5 beats per minute Complete parts (a) through (c) below a....

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Extracted text: Assume that females have pulse rates that are normally distributed with a mean of u=73.0 beats per minute and a standard deviation of o = 12.5 beats per minute Complete parts (a) through (c) below a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 76 beats per minute The probability is (Round to four decimal places as needed ) b. If 4 adult females are randomly selected, find the probability that they have pulse rates with a mean less than 76 beats per minute The probability is N (Round to four decimal places as needed) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? O A. Sınce the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size. OB. Sınce the distribution is of individuals, not sample means, the distribution is a normal distribution for any sample size OC. Since the mean pulse rate exceeds 30, the distribution of sample means is a normal distribution for any sample size OD. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample size Click to select your answer(s). O Type here to search 906 PM ヤ @