1.
True or False: The probability of an event occurring is 1 minus the probability that it doesn’t occur orP(A) = 1- P(not A).
2.
True or False:Two events are disjoint (mutually exclusive) if they share exactly two outcomes in common.
3.
True or False:If A and B are independent events, then the probability of A or B is P(A∩B) = P(A)•P(B).
4.
You draw a card at random from a standard deck of 52 cards. Find the probability of drawing two aces in a row, without replacement.
5.
The American Red Cross says that about 45% of the U.S. population has Type O blood, 40% type A, 11% Type B, and the rest Type AB. Someone volunteers to give blood. What is the probability that this donor has Type AB blood?
6.
The American Red Cross says that about 45% of the U.S. population has Type O blood, 40% type A, 11% Type B, and the rest Type AB. Someone volunteers to give blood. What is the probability that this donor has Type A or Type B?
7.
The American Red Cross says that about 45% of the U.S. population has Type O blood, 40% type A, 11% Type B, and the rest Type AB. Among four potential donors, what is the probability that all are Type O?
8.
The American Red Cross says that about 45% of the U.S. population has Type O blood, 40% type A, 11% Type B, and the rest Type AB. Among four potential donors, what is the probability that at least one person is Type B?
9.
A certain bowler can bowl a strike 70% of the time. What is the probability that she bowls a perfect game (12 consecutive strikes)?
10.
You bought a new set of four tires from a manufacturer who just announced a recall because 2% of those tires are defective. What is the probability that at least one of yours is defective?
11.
A probability experiment consists
of picking one marble from a box that contains a red, a yellow, and a
blue marble, and then flipping a coin once. Identify the sample space.
(Let R = red, Y = yellow, B = blue, H = head, and T = tail.)
A.
RY, RB, YB, YR, BR, BY, HT, TH, HH, TT
B.
C.
D.
12.
A random sample of 250 students is taken and classified by type of school and reading ability. What is the probability of randomly picking a student with average reading ability, given the student attends a private school?
13.
Two cards are randomly selected, without replacement, from a standard
deck of playing cards. What is the probability of first picking a five
and then picking a card other than a five?
14.
The table shows the number of traffic violations by day of
occurrence and type of offense for a particular city. Use the table to
find the indicated probabilities.A traffic violation is randomly selected. What is the probability that it is a speeding violation?
15.
The table shows the number of traffic violations by day of
occurrence and type of offense for a particular city. Use the table to
find the indicated probabilities.A traffic violation is randomly selected. What is the probability that
it is a speeding violation given that the violation occurred on a
weekend?
16.
True or False:The two events can be proven independent if P(B|A) = P(A).
17.
A check of dorm room son a large college campus revealed that 38% had refrigerators, 52% had TVs, and 21% had both a TV and a refrigerator. What's the probability that a randomly selected dorm room has neither a TV nor a refrigerator?
18.
If a fair coin is flipped twice with the outcome of each flip independent of each other, what is the probability that two consecutive flips is heads?
19.
Which of the following would simulate 60% ?
A.
Randint(0,9); let 0,1,2 represent "success"
B.
Randint(0,9); let even numbers be a "success"
C.
Randint(0,9); let 0,1,2,3,4,5 represent a "success"
D.
Randint(0,9); let getting a 6 represent a "success"