WorksheetsProbability Review
Total questions: 57
Worksheet time: 14hrs 15mins
Name
Class
Date
1.
Jessia has 7 blue marbles, 3 red marbles, and 2 yellow marbles. Jessia will randomly pick one marble from the bag. What is the probability the marble will be red?
a)
1/4
b)
1/2
c)
3/9
d)
2/9
2.
You roll one 6-sided die. What is the probability you will roll an even number?
a)
1/6
b)
1/3
c)
1/2
d)
3/3 = 1
3.
You roll a 12-sided die. What is the probability of rolling a 6?
a)
1/6
b)
6/12 = 1/2
c)
1/12
d)
6/6 = 1
4.
You roll one 6-sided die. What is the probability of rolling a 2?
a)
1/6
b)
2/6 = 1/3
c)
1/2
5.
Jackson flipped a coin 100 times. He got heads 67 times and tails 33 times. Which statement best describes the situation?
a)
67% is the experimental probability of getting a head on a coin flip.
b)
33% is the theoretical probability of getting a head on a coin flip.
c)
67% is the theoretical probability of getting a head on a coin flip.
d)
33% is the experimental probability of getting a head on a coin flip.
6.
Elbert spun the spinner shown. What is the sample space of the spinner?
a)
{yellow, blue, red}
b)
{1, 2, 3, 4, 5}
c)
{yellow, red, blue, white, green}
d)
{5}
7.
What is the sample space for a 6 sided die?
a)
{1, 3, 5}
b)
{1, 2, 3, 4, 5, 6}
c)
{2, 4, 6}
d)
{6}
8.
Emerson tossed a coin 100 times. It landed on heads 25 times and on tails 75 times. What is the experimental probability it will land on tails?
a)
25/75 = 1/3
b)
75/25 = 3
c)
25/100 = 1/4
d)
75/100 = 3/4
9.
Mason is getting ready to go to a baseball game. He plans to wear either black, white, or red sneakers and a red, blue, black, or tap hat. How many possible combinations can he make?
a)
3
b)
4
c)
7
d)
12
10.
Perry draws a card and replaces it 25 times from a standard deck of 52 cards. She records her results and gets 14 red cards and 11 black cards. What is the experimental probability of selecting a black card on her next draw?
a)
11/25
b)
11/52
c)
14/25
d)
14/52
11.
If you roll a 6-sided die, what is the probability of rolling a 3 OR a 5?
a)
3/5
b)
15/36
c)
2/6 = 1/3
d)
3/9 = 1/2
12.
Thomas spins the spinner shown 20 times. His results are as follows:
Green: 9, Red: 5, Purple: 2, Blue: 4
What is the experimental probability of spinning a blue?
Green: 9, Red: 5, Purple: 2, Blue: 4
What is the experimental probability of spinning a blue?
a)
4/20 = 1/5
b)
4/16
c)
1/4
d)
3/4
13.
Holly has a bag of 8 green balls, 6 red balls, and 9 yellow balls. Out of 60 trials, she pulls out a red ball 18 times. What is the experimental probability of getting a red ball on her next trial?
a)
6/23
b)
3/10
c)
1/10
d)
6/17
14.
Holly has a bag of 8 green balls, 6 red balls, and 9 yellow balls. What is the theoretical probability of choosing a yellow ball?
a)
9/17
b)
8/23
c)
9/23
d)
6/23
15.
Jade has 6 red shirts, 4 blue shirts, and 4 yellow shirts. If she randomly selects a shirt, what is the probability that she chooses blue or yellow?
a)
2/7
b)
4/7
c)
3/7
d)
8
16.
There are 25 cards numbered 1-25. What is the probability you choose a 7 or a 12?
a)
7/25
b)
12/25
c)
19/25
d)
2/25
17.
There are 25 cards numbered 1-25. What is the probability you choose an even number?
a)
1/2
b)
12/25
c)
2/25
d)
1/25
18.
What is the probability that you will roll an even OR an odd on a 6-sided die?
a)
1/2
b)
1/4
c)
1
d)
1/6
19.
What is the probability that you will pull a red or black card from a standard deck of cards?
a)
1/52
b)
1/26
c)
1
d)
1/2
20.
A bag contains 5 red, 3 blue, 3 green, and 1 yellow marbles. What is the probability that you will choose a red and then a green marble assuming that you replace the first marble?
a)
5/12
b)
3/12
c)
2/3
d)
5/48
21.
A bag contains 5 red, 3 blue, 3 green, and 1 yellow marbles. What is the probability that you will choose a blue and then another blue assuming that you replace the first marble?
a)
1/24
b)
1/16
c)
1/2
d)
3/4
22.
Dante flipped a coin 50 times and recorded if it landed on heads or tails: Heads 29 and Tails 21. What is the experimental probability that the coin will land on heads?
a)
29/50
b)
21/50
c)
29
d)
1/2
23.
Dante will flip a coin 50 times and record whether it lands on heads or tails. What is the theoretical probability that the coin will land on tails?
a)
50
b)
1
c)
1/2
d)
not enough information given
24.
James made a playlist with the following songs:
Hip Hop: 10, Jazz: 12, Pop: 16, Reggae: 8, Rock: 14. If James chooses a song at random to listen to, what is the probability that it will be a reggae song?
Hip Hop: 10, Jazz: 12, Pop: 16, Reggae: 8, Rock: 14. If James chooses a song at random to listen to, what is the probability that it will be a reggae song?
a)
1/5
b)
4/25
c)
1/6
d)
2/15
25.
Trinity has three green balls, two red balls, five yellow balls, and four orange balls in a bucket. She randomly chooses one ball out of the bucket without looking. What is the probability that she will choose a red ball?
a)
1/7
b)
1/5
c)
2/13
d)
1/6
26.
Trinity has three green balls, two red balls, five yellow balls, and four orange balls in a bucket. She randomly chooses one ball out of the bucket without looking. If she removes all of the orange balls first, what is the probability that she will choose a yellow ball out of the bucket?
a)
5/10
b)
1/2
c)
5/14
d)
1/6
27.
You flip a nickel three times.
Find the probability that all flips will land on tails.
Find the probability that all flips will land on tails.
a)
1/2
b)
1/4
c)
1/6
d)
1/8
28.
You spin this spinner 3 times.
Find the probability of these 3 events.
P(red, odd, 3)
Find the probability of these 3 events.
P(red, odd, 3)
a)
1/216
b)
1/72
c)
1/36
d)
1/12
29.
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
30.
Which event is not a dependent event?
a)
Picking 2 students to each be line leader and door holder from a group of 20 students
b)
Picking 2 marbles from a bag without replacing the first marble
c)
Picking 2 crayons from a box at the same time (simultaneously)
d)
Picking an earring, replacing it, then picking a 2nd earring
31.
In a drawer, there are 6 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace it, then pick out a 2nd sock. What is the probability that you will pick a brown, then black sock?
a)
1/11
b)
1/18
c)
1/36
d)
2/33
32.
What is the probability of spinning green?
a)
0
b)
1/4
c)
1/2
d)
3/4
33.
A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced.
P(white, then purple, then black)
P(white, then purple, then black)
a)
1/36
b)
2/39
c)
5/41
d)
6/43
34.
Clara picks a marble at random, puts it back, and then picks another marble at random.
a)
Dependent
b)
Independent
35.
Pablo chooses a colored marble from a mixed bag and writes down the color. Pablo leaves it out and then draws another.
a)
Independent
b)
Dependent
36.
How do you write 0.02 as a percent?
a)
20%
b)
200%
c)
2%
d)
.02%
37.
The probability based on frequency of outcomes during an experiment
a)
experimental probability
b)
fundamental counting principle
c)
mutually exclusive event
d)
dependent event
38.
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
39.
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
40.
Probability can be between what two numbers?
a)
10 and 20
b)
0 and 100
c)
0 and 1
d)
All Numbers are possible
41.
A set of all possible outcomes is known as -
a)
a list
b)
a complement
c)
a sample space
d)
an event
42.
What is an outcome?
a)
The result of an experiment
b)
The chance or likelihood of an event
c)
A fraction, decimal, or a percent
d)
An activity that gives various results
43.
Experimental Probability is:
a)
What Will happen
b)
What actually happens
c)
What should happen
d)
What I think Happens
44.
Probability is ...
a)
the chance that some event will occur.
b)
a game that involves coins.
c)
a guarantee.
45.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)
a percent
d)
all of the above
46.
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
47.
How many total outfit options are represented?
a)
12
b)
22
c)
3
48.
The tree diagram shows the outcomes of rolling a die and flipping a coin.
What is the probability of rolling an even number and flipping a head?
What is the probability of rolling an even number and flipping a head?
a)
3/12
b)
1/2
c)
4/12
d)
0/12
49.
Determine whether the event is impossible, unlikely, as likely as not, likely, or certain. You flip a fair coin and the coin will land heads up.
a)
impossible
b)
unlikely
c)
as likely as not
d)
likely
50.
Making a prediction requires you
a)
set up an experiment
b)
use a proportion
c)
find the complement
51.
What is the likelihood if the probability is 1/3
a)
impossible
b)
unlikely
c)
likely
d)
certain
e)
equally likely
52.
What is the likelihood if the probability is 0.78
a)
impossible
b)
equally likely
c)
likely
d)
certain
e)
unlikely
53.
What is the likelihood if the probability is 1
a)
impossible
b)
likely
c)
equally likely
d)
certain
e)
unlikely
54.
What is the likelihood if the probability is 0%
a)
impossible
b)
unlikely
c)
equally likely
d)
likely
e)
certain
55.
You roll a number cube 900 times. Which statement is true?
a)
You will land on a 1 exactly 150 times
b)
You will land on a 1 about 150 times
c)
You will land on a 6 about 600 times
d)
You will land on a 6 exactly 600 times
56.
a)
1/4
b)
1/8
c)
1/2
d)
1/6
57.
a)
1/2
b)
1/8
c)
1/3
d)
1/12
100 %
