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Probability Review

Total questions: 45

Worksheet time: 4hrs 45mins

Name
Class
Date
1.

What is the Theoretical Probability of not landing on red?

a)

25%

b)

50%

c)

65%

d)

66.7%

2.

What is the Theoretical Probability of landing on pink?

a)

43%

b)

33.3%

c)

40%

d)

36%

3.
An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling a 3.
a)
1/6
b)
3/6
c)
1
d)
1/2
4.
An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling an 8.
a)
0
b)
8/6
c)
4/3
d)
1/2
5.

In a cup are the numbers 1 - 20. Find the theoretical probability of

picking an even number.

a)

9/20

b)

1/2

c)

1/20

d)

20/20

6.
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
7.
What is the probability of flipping a coin and getting tails?
a)
1/2
b)
1/3
c)
1/4
d)
Never, Tails never fails.
8.
Find the experimental probability:
Roll dice:  1, 3, 3, 4, 4
P(3) = 
a)
3/5
b)
1/6
c)
2/5
d)
1/3
9.
Experimental Probability is:
a)
What Will happen 
b)
What actually happens
c)
What should happen
d)
What I think Happens
10.

A bag has 3 pink marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a pink?

a)

3/10

b)

2/9

c)

1/9

d)

1/3

11.
On a 6-sided die, which is more likely?
a)
Rolling an odd number
b)
Rolling an even number
c)
They are both equally likely.
12.
How many total outfit options are represented?
a)
12
b)
22
c)
3
13.
How many outcomes are there with tossing a coin and rolling a dice?
a)
2
b)
6
c)
12
d)
24
14.
Which shows the sample space for flipping two coins?
a)
H, T
b)
HH, HT, TH, TT
c)
HH, TT
d)
Dime, Nickel
15.

What is sample space?

a)

a process with an uncertain result

b)

a possible result of an action

c)

a list of all possible outcomes of an event

d)

a single outcome or group of outcomes

16.
Tree Diagram
a)
A written list of all possible outcomes
b)
A description of all possible outcomes
c)
A drawing with branches of all possible outcomes
17.

Max is ordering a salad for lunch. He can choose one of chicken, tofu, hard-boiled eggs, or turkey to have on the salad. He can also pick one vegetable topping. The vegetable choices are sprouts, tomatoes, or olives. How many different combinations can Max create?

a)

7 combinations

b)

12 combinations

c)

3 combinations

d)

4 combinations

18.

Action: spin the spinner.

What is the sample space?

a)

1, 2, 3, 4, 5, 6

b)

2, 4, 6, 8, 11, 15

c)

2, 4, 6, 8, 11

d)

2, 2, 4, 4, 6, 6

19.
You pick a marble from this bag.
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
20.
You roll a six sided die. What is the probability of rolling an even number three times in a row? 
a)
3/100
b)
1/2
c)
1/6
d)
1/8
21.
A coin and a number cube with the numbers 1 through 6 are tossed. What is the probability of the coin showing tails and the number cube showing the number 3? 
a)
1/12
b)
1/4
c)
1/8
d)
1/2
22.
What is the probability of spinning the spinner and landing on the 7?
a)
impossible
b)
equally likely 
c)
unlikely 
d)
very likely 
23.
What is the probability of rolling 15 with a pair of dice?
a)
impossible
b)
unlikely
c)
equally likely
d)
likely
24.
A game in which each player is equally likely to win.
a)
Payoff
b)
Random
c)
Sample Space
d)
Fair Game
25.
Probability is ...
a)
the chance that some event will occur.
b)
a game that involves coins.
c)
a guarantee.
26.

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%

27.

The following M & M colors are in the bowl:

4 yellow, 7 orange, 3 green, 5 blue

What is the probability of selecting a brown candy?

a)

unlikely

b)

certain

c)

equally likely

d)

impossible

28.

What is the probability of rolling a sum of one with a pair of dice?

a)

impossible

b)

unlikely

c)

equally likely

d)

likely

29.
Probability can be expressed as a number between_____ and _____.
a)
0 and 100
b)
0 and 10
c)
0 and 1
d)
-1 and 1
30.
A probability near 1 is _______.
a)
never going to happen 
b)
very likely to happen
c)
probably never going to happen
d)
 equally likely to happen
31.
A number cube is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll? 
a)
2/3
b)
5/36
c)
1/9
d)
1/36
32.
Lucy has the spinner pictured and spins it twice in a row. What is the probability that she lands on blue first and then on yellow or green?
a)
1 / 16
b)
1 ⁄ 6
c)
1 ⁄ 8
d)
3 ⁄ 4
33.
A coin and a number cube with the numbers 1 through 6 are tossed. What is the probability of the coin showing tails and the number cube showing the number 3? 
a)
1/12
b)
1/4
c)
1/8
d)
1/2
34.
P(not A) = 
*Remember to simplify.*
a)
6/8
b)
3/4
c)
2/8
d)
1/4
35.
Find the experimental probability of spinning Letter Q.
a)
15/15
b)
3/10
c)
3/50
d)
7/10
36.
If you spin the spinner 90 times, how many times should the number 3 be selected?
a)
9
b)
15
c)
16
d)
30
37.

Action: Roll a die

Event: Roll a number less than 4

Which outcomes are part of the event?

a)

1, 2, 3, 4, 5, 6

b)

1, 2, 3, 4, 5

c)

1, 2, 3, 4

d)

1, 2, 3

38.

If you flip a coin, how likely is it that it will land on either heads or tails?

a)

Impossible

b)

Certain

c)

Likely

d)

Unlikely

39.

P(rolling a sum of 7)

a)

 16\frac{1}{6}  

b)

 77  

c)

 736\frac{7}{36}  

d)

 67\frac{6}{7}  

40.

P(rolling a sum less than 4)

a)

312\frac{3}{12}

b)

112\frac{1}{12}

c)

16\frac{1}{6}

d)

34\frac{3}{4}

41.

P(rolling a sum of 12)

a)

218\frac{2}{18}

b)

112\frac{1}{12}

c)

136\frac{1}{36}

d)

11\frac{1}{1}

42.

Francis made the following chart showing the lunch choices available on a field trip.


Based on the information in the chart, which tree diagram shows all of Francis' possible combinations?

a)
b)
c)
d)
43.
Three coins are tossed.  Use the Sample Space provided. What's the probability of flipping only one tails? 
a)
⅛
b)
1/4 
c)
⅓
d)
⅞
44.
The sample space tree diagram for a team of three students is shown.  What is the probability that the team would consist of at least 2 girls?
a)
½
b)
⅜
c)
¾
d)
⅙
45.
Theoretical Probability is?
a)
What Should happen
b)
What does happen
c)
What Will Happen
d)
What I want to Happen

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