Which of the following physiological responses is part of the short-term stress response but NOT part of the long-term stress response?

In a math class there are 55 students, 40 of whom make an A on the test. If 4 students are selected, one at a time, at random, what is the probability that all made an A on the test?

Assume that the finishing times for a group of runners in a marathon race are likely to be normally distributed. The mean finish time for female marathon runners is 306.4 min with a standard deviation of 39.1 min. Suppose a female runner has a time of 138.95 find the z-score of the runner.

How many different ways can a college select three applicants for a teaching position from a pool of 20 applicants?

The grades on a college math exam are shown in a stem-and-leaf display below. What is the lowest grade?  

A single card is drawn from a standard deck with 52 cards. What is the probability of getting a jack or a king?

A single card is drawn from a standard deck with 52 cards. Find the probability of selecting a 4 or a heart.

Find both the number of combinations and the number of permutations for the given number of objects. 10 objects taken 7 at a time

Mrs. Jackson’s class voted on whether to have a clown (C), a magician (M), or a superhero (S) at their class party. Use the preference table shown to answer the question below. How many people voted?

How many different ways can 4 winning tickets be selected from 100 tickets, without replacement, if each ticket wins a different prize?