Assume that females have pulse rates that are non'nally distributed with a mean of p: T31] beats per minute and a standard deviation oft: =12.5 beats per minute. Complete parts [a] through (c) below. a. It 1 adult female is randomly selected, find the probability that her pulse rate is less than T? beats per minute. The probability is (Round to four decimal places as needed.) b. ltd adult females are randomly selected, nd the probability that they have pulse rates with a mean less than 1'? beats per minute The probability is . (Round to tour 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. Since the distribution is of individuals, not sample means, the distribution is a normal distribution for any sample size, 0 B. Since the distribution is of sample means. not individuals, the distribution is a normal distribution for any sample size. 0 C. Since the mean pulse rate exceeds 30. the distlibution of sample means is a normal distribution for any sample size. 0 D. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample size