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Probability Review pre perm comb

Total questions: 25

Worksheet time: 3hrs 32mins

Name
Class
Date
1.
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
2.
A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?
a)
3
b)
1/10
c)
3/10
d)
30%
3.

How many outfits are possible with 2 pairs of jeans, 5 t-shirts, and 2 pairs of shoes? (Hint: Use a list, tree diagram or the Fundamental Counting Principle.)

a)

9

b)

40

c)

20

d)

10

4.
A die is rolled once.  What is the probability of rolling a 5? Your answer should be a fraction in simplest form.
a)
1/6
b)
1/3
c)
2/5
d)
5/6
5.
A die is rolled once.  What is the probability of rolling a number less than 3? Your answer should be a fraction in simplest form.
a)
1/3
b)
2/6
c)
3/6
d)
1/6
6.
A die is rolled once.  What is the probability of rolling NOT a 4? Your answer should be a fraction in simplest form.
a)
4/6
b)
1/6
c)
1/5
d)
5/6
7.
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%
8.
A set of all possible outcomes is known as - 
a)
a list
b)
a complement
c)
a sample space
d)
an event
9.
What is the type of probability for: rolling a 3 on a number cube and then flipping heads on a coin?
a)
Dependent
b)
Independent
10.
What type of probability is drawing a black card from a deck of cards, putting it aside, and then drawing a red card?
a)
Independent
b)
Dependent
11.

What is the probability that a person had no opinion given they were over 65?

a)

82/814

b)

82/161

c)

82/205

d)

205/814

12.

What proportion of people were between the ages of 20-34 given they were against increasing in speed limit?

a)

38/243

b)

38/814

c)

38/202

d)

243/814

13.
What percentage of females chose soccer as their favorite sport?
a)
13.16%
b)
31.58%
c)
22.73%
d)
43.75%
14.
What proportion of students like basketball?
a)
72/342
b)
36/198
c)
36/144
d)
36/72
15.
What proportion of soccer players are female?
a)
63/144
b)
63/108
c)
45/198
d)
63/342
16.
Students in an Intro Stats class were asked to describe their politics as "Liberal," "Moderate," or "Conservative."  What percent of the class is male (rounded to the nearest percent) ?
a)
60%
b)
59%
c)
55%
d)
78%
17.
Students in an Intro Stats class were asked to describe their politics as "Liberal," "Moderate," or "Conservative."  What percent of the Conservatives are male (rounded to the nearest percent) ?
a)
18%
b)
11%
c)
78%
d)
23%
18.

Find P(Female | not Fall)

a)

0.5

b)

0.231

c)

0.133

d)

0.733

19.

Find P(Female | Summer)

a)

0.462

b)

0.231

c)

0.133

d)

0.733

20.

Find P(Spring or Female)

a)

0.667

b)

0.156

c)

0.578

d)

0.090

21.

Find P(Summer and Male)

a)

0.156

b)

0.122

c)

0.578

d)

0.556

22.

Find P(Fall | Invisibility)

a)

0.444

b)

0.364

c)

0.0.818

d)

0.045

23.

Find P(Freeze Time | Winter)

a)

0.385

b)

0.417

c)

0.114

d)

0.081

24.

Find P(Fly or Spring)

a)

0.227

b)

0.114

c)

0.159

d)

0.018

25.

Find P(not Telepathy)

a)

0.705

b)

0.295

c)

0.395

d)

0.077

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