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WorksheetsConditional & Simple Probability
Total questions: 20
Worksheet time: 36mins
Name
Class
Date
1.
a)
.2855
b)
.6246
c)
.0922
d)
.3230
2.
What is the probability that a student does not play on a sports team?
a)
.5
b)
.45
c)
.55
3.
What is the probability of choosing a Honda?
a)
.5970
b)
.5373
c)
.4627
d)
.4030
4.
What is the probability that a student does play a sport given they do not play an instrument?
a)
.2
b)
.2222
c)
.10
d)
.5
5.
What is the probability that the person picked will be a boy given they speak german?
a)
.7273
b)
.4
c)
.16
d)
.22
6.
What is the probability that a female is chose given they like a Toyota?
a)
.525
b)
.4627
c)
.6774
d)
.3143
7.
What is the probability that a student plays an instrument
a)
.55
b)
.5
c)
.45
d)
.4
8.
What is the probability that a student plays on a sports team given they don't play an instrument?
a)
.7273
b)
.8
c)
.55
d)
.2222
9.
What is the probability that they speak French given they are a girl?
a)
2.14
b)
.24
c)
.4
d)
.8571
10.
What statement does the shaded region represent
a)
A or B
b)
Not A
c)
A and B
d)
Not B
11.
a)
1/2, 50%
b)
1/3, 33.3%
c)
2/3, 66.7%
d)
1/5, 20%
12.
a)
0%
b)
100%
c)
2/3, 66.7%
d)
3/5, 60%
13.
a)
0%
b)
1/4, 25%
c)
1/2, 50%
d)
100%
14.
Consider the following table with information about all of the students taking Statistics at Happy High School.
Find P( Female | Part-time) =
a)
15/31
b)
43/71
c)
31/43
d)
15/43
15.
P(Sandals|Pants):
a)
4/20
b)
6/15
c)
1/2
d)
2/7
16.
P(Pizza|Senior):
a)
10/15
b)
4/5
c)
2/3
d)
10/5
17.
What is P(male given F)?
a)
53.8%
b)
7%
c)
13%
d)
26.9%
18.
What is P(Spanish given Girl)?
a)
30%
b)
60%
c)
50%
d)
15%
19.
Convert 73% to a decimal
a)
73.0
b)
0.37
c)
0.73
d)
0.7
20.
Convert 3/4 to percent
a)
75%
b)
25%
c)
50%
d)
100%
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