Question 1
4 out of 4 points
If events A and B are independent, then p(A and B) = _________.
Question 2
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 3
0 out of 4 points
If p(A and B) = 0, then A and B must be _________.
Question 4
4 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 5
0 out of 4 points
A “hungry” undergraduate student was looking for a way of making some extra money. The student turned to a life of vice – gambling. To be a good gambler, he needed to know the probability of certain events. Help him out by answering the following question.
The probability of drawing a face card (king, queen or jack) of any suit from a deck of 52 ordinary playing cards in one draw is _________.
Question 6
4 out of 4 points
If p(A)p(B|A) = p(A)p(B), then A and B must be _________.
Question 7
0 out of 4 points
Two events are mutually exclusive if _________.
Question 8
4 out of 4 points
If p(A) = 0.6 and p(B) = 0.5, then p(B|A) equals _________.
Question 9
0 out of 4 points
The probability of drawing an ace followed by a king (without replacement) equals _________.
Question 10
0 out of 4 points
The probability of throwing two ones with a pair of dice equals _________.
Question 11
0 out of 4 points
A sample is random if _________.
Question 12
0 out of 4 points
If p(A or B) = p(A) + p(B) then A and B must be _________.
Question 13
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 14
0 out of 4 points
If events are mutually exclusive they cannot be _________.
Question 15
4 out of 4 points
If p(A and B) = p(A)p(B|A) ยน p(A)p(B), then A and B are _________.
Question 16
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 beverage you get is a beer?
Question 17
4 out of 4 points
A priori probability refers to _________.
Question 18
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 bottle selected is a Coors beer?
Question 19
4 out of 4 points
The Addition Rule states _________.
Question 20
0 out of 4 points
When events A and B are mutually exclusive but not exhaustive, p(A or B) equals _________.
Question 21
4 out of 4 points
Two events are independent if _________.
Question 22
0 out of 4 points
Probabilities vary between _________.
Question 23
0 out of 4 points
If a stranger gives you a coin and you toss it 1,000,000 times and it lands on heads 600,000 times, what is p(Heads) for that coin?
Question 24
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 25
0 out of 4 points
A “hungry” undergraduate student was looking for a way of making some extra money. The student turned to a life of vice – gambling. To be a good gambler, he needed to know the probability of certain events. Help him out by answering the following question.
The probability of drawing an ace, a king and a queen of any suit in that order is _________. Sampling is without replacement from a deck of 52 ordinary playing cards.
