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WorksheetsProbability and Likelihood
Total questions: 15
Worksheet time: 42mins
Name
Class
Date
1.
At a community swimming pool there are 2 managers, 8 lifeguards, 3 concession stand clerks, and 2 maintenance people. If a person is selected at random, find the probability that the person is either a lifeguard or a manager.
a)
2/3
b)
8/15
c)
2/15
d)
not enough information
2.
You pick a marble from this bag.
What is the probability you will choose either a black or white marble?
What is the probability you will choose either a black or white marble?
a)
3/5
b)
9/100
c)
1/10
d)
2/5
3.
A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?
a)
5/6
b)
1/2
c)
1/3
d)
1/6
4.
A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?
a)
5/11
b)
5/6
c)
1/3
d)
5
5.
a)
Certain
b)
Likely
c)
Unlikely
d)
Impossible
6.
a)
Certain
b)
Likely
c)
Unlikely
d)
Impossible
7.
a)
Certain
b)
Likely
c)
Unlikely
d)
Impossible
8.
A bag has 3 red marbles, 2 blue and 4 yellow. What is theprobability of pulling a orange?
a)
certain
b)
impossible
c)
unlikely
d)
equally likely
9.
What is the probability of spinning green?
a)
impossible
b)
unlikely
c)
very likely
d)
equally likely
10.
Probability is ...
a)
the chance that some event will occur.
b)
a game that involves coins.
c)
a guarantee.
11.
A flying pig
a)
Likely
b)
Possible
c)
Unlikely
d)
Impossible
12.
What is the probability of flipping heads on a coin?
a)
impossible
b)
unlikely
c)
equally likely
d)
likely
13.
A regular 6-sided die is to be rolled once. What is the probability that a number less than or equal to 4 is rolled?
a)
1/2
b)
1/4
c)
5/6
d)
2/3
14.
A spinner has 8 equal regions. Each region is marked with one of the following numbers: 10, 20, 30, 40, 50, 60, 70, 80. What is the probability of an even number being spun on the first roll?
a)
1/8
b)
1/2
c)
1
d)
3/8
15.
What is the probability of getting any letter that is not A?
a)
6/8
b)
3/4
c)
2/8
d)
1/4
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