Questions from Statistics Principles

Q: Given P(AB) = .4 and P(B

Given P(AB) = .4 and P(B) = .5, find P(A IB). If, further, P(A) = .8, are A and B independent?

Q: Rap music was the favorite genre of 6 out of 56 students

Rap music was the favorite genre of 6 out of 56 students from a large Midwestern university. Identify a statistical population and the sample.

Q: Repeat (a) and (b) of Exercise 2.

Repeat (a) and (b) of Exercise 2.59 for the data set 2.5 1.7 2.1 1.5 1.7 Data from Exercise 2.59: For the data set 8 6 14 4 (a) Calculate the deviations (x - x) and check to see that they add up...

Q: Suppose three events A, B, and Care such that B

Suppose three events A, B, and Care such that B and C are mutually exclusive and (a) Show the events in a Venn diagram. (b) Determine the probabilities of all the intersections and mark them in the V...

Q: Refer to Exercise 4.118 for each pair of events given

Refer to Exercise 4.118 for each pair of events given below, determine whether or not the events are independent. (a) A, C (b) AB,C Data from Exercise 4.118: Suppose three events A, B, and Care suc...

Q: Let A b e the event that a person is a binge

Let A b e the event that a person is a binge drinker and B be the event that the person is female. For a person selected at random, a recent survey of the National Center for Health Statistics suggest...

Q: Refer to the probability t able given in Exercise 4.112

Refer to the probability t able given in Exercise 4.112 concerning three events A, B, and C. (a) Find the conditional probability of A given that B does not occur. (b) Find the conditional probabili...

Q: Mr. Hope, a character apprehended by Sherlock Holmes, was

Mr. Hope, a character apprehended by Sherlock Holmes, was driven by revenge to commit two murders. He presented two seemingly identical pills, one containing a deadly poison, to an adversary who selec...

Q: Refer to the Statistics in Context discussion about space junk. Change

Refer to the Statistics in Context discussion about space junk. Change the probability of hitting to (a) .4 and repeat the calculation of probability for hitting your city. (b) .1 and repeat the cal...

Q: An e-commerce electronics firm sent 80% of its orders

An e-commerce electronics firm sent 80% of its orders by a parcel service that delivers late only 3% of the time. It sends the other 20% of items by a combination bus service and local transportation...