If you had the following grade report but had not taken your final exam yet, what would you need to make on the final exam to score at least an 80 in the course overall? What does your answer tell you?
Mrs. John's Grade Weighting

Grade Report
Homework Average: 78%. Quiz average: 72% test average: 64%. Mrs John's grade weighting. Homework: 10% Quiz: 10% Test: 45% Final exam grade 20%

Assume that females have pulse rates that are normally distributed with a mean of mu equals 72.0 beats per minute and a standard deviation of sigma equals 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 between 65 beats per minute and 79 beats per minute. the probability is? b. if 16 adult females are randomly selected, find the probability that they have pulse rates with a mean between 65 beats per minute and 79 beats per minute. the probability is? c. why can the normal distribution be used in part (b), even though the sample size does not exceed 30?