WorksheetsUnit 7 Probability
Total questions: 25
Worksheet time: 1hrs 20mins
Name
Class
Date
1.
The image represents which of the following?
a)
intersection, "and"
b)
intersection, "or"
c)
union, "and"
d)
union, "or"
2.
P(Pizza ∩ Water) =
a)
62/182
b)
120/400
c)
58/400
d)
140/400
3.
P(Pizza) =
a)
182/400
b)
120/400
c)
58/200
d)
200/400
4.
P(Soda) =
a)
200/400
b)
158/400
c)
50/200
d)
120/200
5.
P(Pizza ∪ Water) =
a)
182/400 + 140/400 - 58/400
b)
182/400 + 140/400 - 0
c)
58/400 + 140/400 -182/400
d)
182 + 140 - 58
6.
What is
P(Foreign language ∩ Sport)?
P(Foreign language ∩ Sport)?
a)
14/50
b)
47/50
c)
24/50
d)
14/47
7.
The image represents which of the following?
a)
intersection, "and"
b)
union, "or"
c)
intersection, "or"
d)
union, "and"
8.
What is the probability that a student does not play on a sports team?
a)
.5
b)
.45
c)
.55
9.
What is the probability of choosing a Honda?
a)
.5970
b)
.5373
c)
.4627
d)
.4030
10.
What percentage of the days that it rained, did they forecast no rain?
a)
About 20%
b)
About 18%
c)
About 14%
d)
About 12%
11.
The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown
What is the probability of selecting a brown candy?
4 yellow, 6 orange, 3 green, 5 blue, 2 brown
What is the probability of selecting a brown candy?
a)
2/18
b)
1/9
c)
2/20
d)
1/10
12.
What is represented in the Venn diagram?
a)
A
b)
B
c)
A ∪ B
d)
A ∩ B
13.
In a standard deck of 52 cards there are 13 diamonds and 13 hearts (red) and 13 spades and 13 clubs (black). Find the probability of choosing a card at random that is a spade OR a 7
a)
1/52
b)
1/13
c)
4/13
d)
17/52
14.
find the probability of choosing a student at random that plays an instrument OR a sport
a)
1/2
b)
13/20
c)
21/20
d)
4/5
15.
Given a standard number cube, and the events of rolling an odd number or a 4. Are the events mutually exclusive?
a)
Not Mutually Exclusive
b)
Mutually exclusive
c)
1/2
d)
1/6
16.
A jar contains 8 marbles: 3 are red and 5 are blue. What is the probability of selecting a red marble, replacing it, and then selecting another red marble?
a)
9/64
b)
6/56
c)
15/64
d)
25/64
17.
What is the probability you select a teen given that the person likes chocolate?
a)
.112
b)
.267
c)
.164
d)
.056
18.
Given the person is a child, what is the probability they would pick neither?
a)
.26
b)
.195
c)
.286
d)
.214
19.
Of the mechanical engineers, what is the probability that math is their favorite subject?
a)
1.91
b)
52%
c)
17%
d)
35%
20.
The likelihood that an event will NOT occur is known as its -
a)
complement
b)
sample space
c)
opposite
d)
trial
21.
How do you write 0.02 as a percent?
a)
20%
b)
200%
c)
2%
d)
.02%
22.
The outcome of one event does not influence the outcome of the other event
a)
independent event
b)
tree diagram
c)
simple event
d)
odds
23.
The outcome of one event does influence the outcome of the other event
a)
mutually exclusive event
b)
probability
c)
dependent event
d)
simple probability
24.
The probability of it raining today is 30%. What is the probability that it will NOT rain?
a)
30%
b)
70%
c)
100%
d)
0%
25.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)
a percent
d)
all of the above
100 %
