# Question: In a group of 200 college students 138 are enrolled

In a group of 200 college students, 138 are enrolled in a course in psychology, 115 are enrolled in a course in sociology, And 91 are enrolled in both. How many of these students are not enrolled in either course?

**View Solution:**## Answer to relevant Questions

Among 120 visitors to Disneyland, 74 stayed for at least 3 hours, 86 spent at least $ 20, 64 went on the Matterhorn ride, 60 stayed for at least 3 hours And spent at least $ 20, 52 stayed for at least 3 hours And went on the ...Suppose that each of the 30 points of the sample space of Exercise 2.40 is assigned the probability 1/30. Find the probabilities that at a given moment (a) At least one of the station wagons is empty; (b) Each of the two ...Explain on the basis of the various rules of Exercises 2.5 through 2.9 why there is a mistake in each of the following statements: (a) The probability that it will rain is 0.67, And the probability that it will rain or snow ...Use the formula of Exercise 2.15 to convert each of the following odds to probabilities: (a) If three eggs are randomly chosen from a carton of 12 eggs of which 3 are cracked, the odds are 34 to 21 that at least one of them ...Using the method of Exercise 2.85, generate a second set of 1,000 random integers on (0, 9). Estimate the probability that A: an integer selected at random from the first set will be less than 1 or B: An integer selected at ...Post your question