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PROBABILITY JEOPARDY
Basic
Probability
Mut.
Exc.
Events
Ind.
Events
Dep.
Events
Cond.
Prob.
At least
Prob.
200 200 200 200 200 200
400 400 400 400 400 400
600 600 600 600 600 600
800 800 800 800 800 800
1000 1000 1000 1000 1000 1000
Basic - 200
• When a card is drawn from a standard deck of cards, what is the probability of getting jack?
Back to gameboardAnswer
Basic - 400
• In a certain group of people, the chances of a person suffering a heart attack are 55%. If a person is selected at random what is the probability that he will not suffer a heart attack?
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Basic - 600
• When two standard 6-sided dice are rolled, find the probability of getting a sum that is less than 12.
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Basic - 800
• At a men’s clothing store, 12 men purchased blue golf sweaters, 8 purchased green sweaters, 4 purchased gray sweaters, and 7 bought black sweaters. If a customer is selected at random, find the probability that he purchased a sweater that was not black.
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Basic - 1000
• A single 6 sided die is rolled. Find the probability of getting a prime number.
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Mutually Exclusive - 200
• When a single card is drawn from a standard deck of cards, what is the probability of getting a 5 or a king?
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Mutually Exclusive - 400
• When a single card is drawn from a standard deck of cards, what is the probability of getting a 2 or a red card?
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Mutually Exclusive - 600
• The probability that a person owns a microwave oven is 0.75, that a person owns a CD player is .25 and that a person owns both a microwave and a CD player is 0.16. Find the probability that a person owns either a microwave or a CD player but not both.
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Mutually Exclusive - 800
• A sheriff needs new tires for his road patrol cars. The probability that he will purchase Michelin, Goodyear, or Uniroyal tires is, respectively, 0.20, 0.30 and 0.40. What is the probability that he will not purchase any of these brands?
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Mutually Exclusive - 1000 In the following table, students are classified
according to their class and their favorite pizza topping:
Anchovies Onions Mushrooms Hamburger
Fresh 7 6 7 3
Soph 1 9 0 9
Junior 3 2 5 8
Find the probability that if a student is selected at random he is a freshman or junior or likes onions.
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Independent - 200
• Find the probability that when tossing a coin 2 times you will get tails both times.
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Independent - 400
• A coin is tossed and a card is drawn from an ordinary deck of cards. Find the probability of getting a head on the coin and a red card.
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Independent - 600
• Of the physics graduates of a university, 30% received a starting salary of $30,000 or more. If 5 of the graduates are selected at random, find the probability that all had a starting salary of $30,000 or more.
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Independent - 800
• Of the members of Blue River Health Club, 75% exercise on a regular basis. If 4 members are selected at random, find the probability that none of them exercise on a regular basis.
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Independent - 1000
• Three cards are drawn from a deck of cards with replacement. Find the probability that all three cards were clubs.
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Dependent - 200
• A bag contains 10 red and 6 blue marbles. A person selects two marbles without replacement. Find the probability of selecting 2 blue marbles.
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Dependent - 400
• A flashlight has a total of 6 batteries, two of which are defective. If two batteries are selected at random without replacement, find the probability that both are defective.
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Dependent - 600
• In a department store, there are 12 customers, 9 of whom buy at least one item. If 5 customers are selected at random, find the probability that all will buy at least one item.
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Dependent - 800
• A pet store has seven puppies, including 4 poodles, 2 labs, and 1 retriever. If Mrs. Jeffrey selects two puppies one at a time without replacement, what is the probability that she will select one of each a poodle and a lab.
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Dependent - 1000
• What is the probability that a husband, wife and daughter all have the same birthday? (Express answer as a fraction)
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Conditional - 200
• The probability that Sam will be accepted by the college of his choice and obtain a scholarship is 0.35. If the probability that he is accepted by the college is 0.65, find the probability that he will obtain a scholarship given that he is accepted by the college.
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Conditional - 400
• The probability that Sue will live on campus and buy a new car is 0.37. If the probability that she will live on campus is 0.73, find the probability that she will buy a new car, given that she lives on campus.
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Conditional - 600 A survey of students at a technical
school revealed the following employment breakdown:
Full-Time
Part-Time
Unemployed
Male 75 75 50
Female 125 75 100
Given that a male student is selected, what is the probability that he is unemployed? Back to gameboardAnswer
Conditional - 800 In the following table, students are classified
according to their class and their favorite pizza topping:
Anchovies Onions Mushrooms Hamburger
Fresh 7 6 7 3
Soph 1 9 0 9
Junior 3 2 5 8
What is the probability he likes anchovies given that he is a junior?
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Conditional - 1000
• The probability that a certain concert will be well advertised is 0.80, and the probability that it will be well advertised and a great success is 0.76. What is the probability that the concert, if well advertised, will be a great success?
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At Least - 200
• A coin is tossed 3 times. Find the probability of getting at least 1 head.
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At Least - 400
• If a zoologist has 4 male guinea pigs and eight female guinea pigs and randomly chooses two of them for an experiment, what is the probability of getting at least one female guinea pig?
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At Least - 600
• In a certain vintage aircraft, one of the engines has a 10% chance of failure on any flight. Find the probability that on 4 given flights at least one engine will fail.
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At Least - 800
• If 3 eggs are randomly chosen from a carton of 12 eggs of which 3 are cracked find the probability that at least one of them will be cracked.
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At Least - 1000
• A jar contains 15 numbered balls that are identical except for the numbers 1 – 15. Suppose that you remove 4 balls randomly without replacement. What is the probability that at least one ball will have an even number?
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Answer for Basic -200
4( )
521
13
P Jack
or
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Answer for Basic - 400
1 .55
.45
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Answer for Basic - 600
total in sample space: 36
only one way to get a 12
1 1-
3635
36
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Answer for Basic - 800
Total: 31
non-black: 24
24
31Back to gameboard
Answer for Basic - 1000
Primes: 2, 3, 5
3
6
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Answer for Mutually Exclusive - 200
(5) ( )
4 4
52 528
or .15452
P P king
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Answer for Mutually Exclusive - 400
(2) ( ) (2 and )
4 26 2
52 52 5228
.53852
P P R P R
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Answer for Mutually Exclusive - 600
( ) ( ) ( and )
.75 .25 .16
.84
P m P cd P m cd
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Answer for Mutually Exclusive - 800
1 ( or or )
1 .20 .30 .40
1 .90 .10
P M G U
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Answer for Mutually Exclusive - 1000
50.83
60
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Answer for Independent - 200
1 1 1
2 2 4
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Answer for Independent - 400
1 26 1
2 52 4
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Answer for Independent - 600
5.30 .00243
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Answer for Independent - 800
4
1 .75 .25
1.25 or .0039
256
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Answer for Independent - 1000
313 1
or .01562552 64
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Answer for Dependent - 200
6 5
16 1530 1
or .125240 8
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Answer for Dependent - 400
2 1
6 52 1
or .06730 15
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Answer for Dependent - 600
9 8 7 6 5
12 11 10 9 815120
or .15995040
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Answer for Dependent - 800
4 2 2 4
7 6 7 616
or .3842
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Answer for Dependent - 1000
365 1 1
365 365 365365 1
or 48627125 133225
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Answer for Conditional - 200
.35( )
.657
or .53813
P s a
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Answer for Conditional - 400
.37( )
.73.507
P n c
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Answer for Conditional - 600
50 1( ) or
200 4P u m
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Answer for Conditional - 800
3 1( ) or
18 6P A J
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Answer for Conditional - 1000
.76( ) or .95
.80P s a
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Answer for At Least - 200
1 (no heads)
1 1 1 71-
2 2 2 8
P
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Answer for At Least - 400
1 (no females)=
4 3 101
12 11 11
P
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Answer for At Least - 600
1 no failures
1 .90 .90 .90 .90
34.39%
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Answer for At Least - 800
1 (no cracked)
9 8 71
12 11 10
.618
P
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Answer for At Least - 1000
1 no even
8 7 6 51
15 14 13 12
37
39
P
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