Kiara found the solution for the inequality, 3.2 less-than negative 9.5 + x. 3.2 less-than negative 9.5 + x. 3.2 + 9.5 less-than negative 9.5 + 9.5 + x. 12.7 less-than x. A number line going from 12 to 12.9. An open circle is at 12.7. Everything to the left of the circle is shaded. What is Kiara’s error? Kiara should have added 9.5 to each side of the inequality to get the solution 6.3 less-than x. Kiara should have reversed the variable and the number in the solution to get x less-than 12.7. Kiara should have used a closed circle on the graph. Kiara should have shaded the number line to the right of the circle.

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?