Assume you are rolling two fair dice once

Question 1

0 out of 4 points

Assume you are rolling two fair dice once. The probability of obtaining at least one 3 or one 4 equals _________.

Question 2

0 out of 4 points

If μ = 35.2 and s = 10, then p(X) for X £ 39 equals _________. Assume random sampling.

Question 3

0 out of 4 points

The probability of throwing two ones with a pair of dice equals _________.

 

Question 4

0 out of 4 points

The probability of randomly selecting a face card (K, Q, or J) or a spade in one draw equals _________.

Question 5

0 out of 4 points

If p(A and B) = 0, then A and B must be _________.

Question 6

0 out of 4 points

A famous hypnotist performs in Meany Hall before a crowd of 350 students and 180 non-students. The hypnotist knows from previous experience that one-half of the students and two-thirds of the non-students are hypnotizable. What is the probability that a randomly chosen person from the audience will be hypnotizable or will be a non-student?

Question 7

0 out of 4 points

If μ = 400 and s = 100 the probability of selecting at random a score less than or equal to 370 equals _________.

Question 8

0 out of 4 points

Probabilities vary between _________.

Question 9

0 out of 4 points

A sample is random if _________.

Question 10

0 out of 4 points

If you have 15 red socks (individual, not pairs), 24 green socks, 17 blue socks, and 100 black socks, what is the probability you will reach in the drawer and randomly select a pair of green socks? (Assume sampling without replacement.)

Question 11

0 out of 4 points

A certain university maintains a colony of male mice for research purposes. The ages of the mice are normally distributed with a mean of 60 days and a standard deviation of 5.2. Assume you randomly sample one mouse from the colony. The probability his age will be between 55 and 70 days is _________.

Question 12

0 out of 4 points

A certain university maintains a colony of male mice for research purposes. The ages of the mice are normally distributed with a mean of 60 days and a standard deviation of 5.2. Assume you randomly sample one mouse from the colony. The probability his age will be less than 45 days is _________.

Question 13

0 out of 4 points

When events A and B are mutually exclusive but not exhaustive, p(A or B) equals _________.

Question 14

0 out of 4 points

Let’s assume you are having a party and have stocked your refrigerator with beverages. You have 12 bottles of Coors beer, 24 bottles of Rainier beer, 24 bottles of Schlitz light beer, 12 bottles of Hamms beer, 2 bottles of Heineken dark beer and 6 bottles of Pepsi soda. You go to the refrigerator to get beverages for your friends. In answering the following question assume you are randomly sampling without replacement. What is the probability the first four bottles you select will be a Coors, a Schlitz, a Rainier, and a Coors in that order?

Question 15

0 out of 4 points

Assume you are rolling two fair dice once. The probability of obtaining a sum of 2 or 12 equals _________.

Question 16

0 out of 4 points

If the odds in favor of an event occurring are 9 to 1, the probability of the event occurring is _________.

Question 17

0 out of 4 points

Two events are mutually exclusive if _________.

Question 18

0 out of 4 points

If the probability of drawing a member of a population is not equal for all members, then the sample is said to be _________.

Question 19

0 out of 4 points

If A and B are mutually exclusive and exhaustive, then p(A and B) = _________.

Question 20

0 out of 4 points

If p(A or B) = p(A) + p(B) then A and B must be _________.

Question 21

0 out of 4 points

A priori probability refers to _________.

Question 22

0 out of 4 points

Let’s assume you are having a party and have stocked your refrigerator with beverages. You have 12 bottles of Coors beer, 24 bottles of Rainier beer, 24 bottles of Schlitz light beer, 12 bottles of Hamms beer, 2 bottles of Heineken dark beer and 6 bottles of Pepsi soda. You go to the refrigerator to get beverages for your friends. In answering the following question assume you are randomly sampling without replacement. What is the probability your first three bottles selected are Pepsi’s?

Question 23

0 out of 4 points

Suppose you are going to randomly order individuals A, B, C, D, E and F. The probability the order will begin A B _ _ _ _ is _________.

Question 24

0 out of 4 points

Which of the following are examples of mutually exclusive events?

Question 25

0 out of 4 points

The probability of correctly guessing a two digit number is _________.