a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 76 beats per minute. b. If 25 adult females are randomly selected, find the probability that they have pulse rates with a mean greater than 80 beats per minute. c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30?

(c) the diagram shows the first three shapes of a matchsticks arrangement. first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Analyze the diagram below and complete the instructions that follow. how to find tan