Questions from Statistics Principles

Q: Refer to Exercise 4.39. Express the following events in

Refer to Exercise 4.39. Express the following events in set notation and find their probabilities. (a) B occurs and A does not occur. (b) N either A nor B occurs. (c) Either A occurs or B does not...

Q: Binge drinking for males is consuming 5 drinks in two hours and

Binge drinking for males is consuming 5 drinks in two hours and for females it is consuming 4 drinks. Consider the two events A = [ Binge drinking ] B = [Female ] A recent survey by the National Ce...

Q: If P(A) = .4 and P(B

If P(A) = .4 and P(B) = .7, can A and B be mutually exclusive? Why or why not ?

Q: From the probabilities shown in this Venn diagram, determine the probabilities

From the probabilities shown in this Venn diagram, determine the probabilities of the following events. (a) A does not occur. (b) A occurs and B does not occur. (c) Exactly one of the events A and B...

Q: In a class of 32 seniors and graduate students, 20 are

In a class of 32 seniors and graduate students, 20 are men and 12 are graduate students of whom 8 are women . If a student is randomly selected from this class, what is the probability that the select...

Q: Of 18 fast food restaurants in a city, 7 are in

Of 18 fast food restaurants in a city, 7 are in violation of sanitary standards, 8 are in violation of safety standards, and 4 are in violation of both. If a fast food restaurant is chosen at random,...

Q: Given that the probability that A occurs is .3, the

Given that the probability that A occurs is .3, the probability that B does not occur is .6, and the probability that either A or B occurs is .5, find: (a) The probability that A does not occur. (b)...

Q: The medical records of the male diabetic patients reporting to a clinic

The medical records of the male diabetic patients reporting to a clinic during one year provide the following percentages. Suppose a patient is chosen at random from this group, and the events A , B,...

Q: The following frequency table shows the classification of 58 landfills in a

The following frequency table shows the classification of 58 landfills in a state according to their concentration of the three hazardous chemicals arsenic, barium, and mercury. If a landfill is selec...

Q: A social networking site reported the number of passwords memorized by 150

A social networking site reported the number of passwords memorized by 150 visitors who agreed to participate. Identify the statistical population and the sample for the number of passwords memorized....