Question 1:

A medical test is available to determine whether a patient has a certain disease. To determine the accuracy of the test, a total of 9600 people are tested. Only 200 of these people have the disease, while the other 9400 are disease free. Of the disease-free people, 9100 get a negative result, and 300 get a positive result. The 200 people with the disease all get positive results. Round your answers to four decimal places, if necessary.

(c) Given that a person gets a positive result, what is the probability that the person actually has the disease?

Given that a person gets a positive result, the probability that the person actually has the disease is blank.

Question 2:

Following is the probability distribution of a random variable that represents the number of extracurricular activities a college freshman participates in.

x	0	1	2	3	4
Px	0.07	0.13	0.45	0.22	0.13

(b) Find the probability that a student participates in more than two activities.

The probability that a student participates in more than two activities is

Question 3:

A binomial experiment has the given number of trials n and the given success probability

p.

n=9, p=0.2

Question 4: