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WorksheetsSimple Probability
Total questions: 40
Worksheet time: 3hrs 8mins
Name
Class
Date
1.
Probability is ...
a)
the chance that some event will occur.
b)
a game that involves coins.
c)
a guarantee.
2.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)
a percent
d)
all of the above
3.
A likely chance event is closer to what number?
a)
0
b)
1
c)
.5
d)
100
4.
An unlikely chance event is closer to what number?
a)
0
b)
1
c)
2
d)
3
5.
What is the probability of spinning the spinner and having it land on RED?
a)
33%
b)
50%
c)
12%
6.
What is the probability of flipping a coin and getting heads?
a)
1/2
b)
1/3
c)
1/4
d)
Never, Tails never fails.
7.
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
8.
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%
9.
What is the probability of spinning an even number?
a)
16 2/3%
b)
33 1/3%
c)
50%
d)
75%
10.
Is the spinner more likely or less likely to land on green than yellow?
a)
more likely
b)
less likely
11.
What is the probability of drawing a red card from a standard deck of cards?
a)
1/52
b)
13/52
c)
1/2
d)
4/52
12.
The probability of Asher's soccer team winning its next game is 7/10. What is the probability of not winning their next game?
a)
unlikely
b)
3/10
c)
1/2
d)
impossible
13.
What is the probability of pulling a red marble out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?
a)
1/7
b)
7/20
c)
7/10
d)
3/10
14.
If you were to roll the die one time what is the probability of it landing on a 2?
a)
2 out of 6
b)
2 out of 2
c)
1 out of 6
d)
1 out of 1
15.
What is the probability of the spinner landing on red?
a)
5/12
b)
1/5
c)
5/5
d)
3/5
16.
Experimental Probability is:
a)
What Will happen
b)
What actually happens
c)
What should happen
d)
What I think Happens
17.
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
18.
Experimental Probability is:
a)
What Will happen
b)
What actually happens
c)
What should happen
d)
What I think Happens
19.
Theoretical Probability is?
a)
What Should happen
b)
What does happen
c)
What Will Happen
d)
What I want to Happen
20.
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
21.
The chart below represents the number of marbles in a jar.
P(green) =
P(green) =
a)
5/19
b)
10/28
c)
5/14
22.
What is the probability of selecting an orange candy?
a)
0%
b)
25%
c)
50%
d)
100%
23.
P(not A) =
*Remember to simplify.*
*Remember to simplify.*
a)
6/8
b)
3/4
c)
2/8
d)
1/4
24.
Action: Choose one sport.
Event: Pick a sport with no ball.
Sample space: football, swimming, baseball, gymnastics
Which outcomes are part of the event?
a)
football
b)
swimming
c)
baseball
d)
gymnastics
25.
Event: pick a friend who likes horror films.
Which is an outcome for the given event?
a)
Kitu
b)
Li
c)
Shen
d)
Kimberly
e)
Enrique
26.
Find the experimental probability:
Roll dice: 1, 3, 3, 4, 4
P(1) =
a)
3/5
b)
1/6
c)
2/5
d)
1/5
27.
Rate your self on: Probability of Simple Events
a)
Clear
b)
Somewhat Clear
c)
Not so clear
28.
A bag of markers has 4 red markers, 5 blue markers, 3 yellow markers, and 3 green markers. If Maria pulls out a marker without looking, what is the probability he will NOT pull out a blue marker?
a)
5/10
b)
1/3
c)
4/15
d)
2/3
29.
The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”?
a)
2/7
b)
5/49
c)
5/7
d)
10/49
30.
The letters that form the word MATHEMATICS are placed in a bowl. What is the probability of choosing a "M"?
a)
8/121
b)
4/11
c)
2/11
d)
4/121
31.
a)
1/6, 16.7%
b)
5/6, 83.3%
c)
1/5, 20%
d)
100%
32.
Find the probability of drawing a 10 from a standard deck of 52 cards.
a)
1 out of 52
b)
13 out of 52
c)
26 out of 52
d)
4 out of 52
33.
Change this decimal to a percent.
0.528
0.528
a)
528%
b)
52.8%
c)
5.28%
d)
52%
34.
You have 3 shirts, 2 pairs of jeans, and 3 pairs of shoes. Using the fundamental counting principle, how many outfits can you make?
a)
6
b)
18
c)
8
d)
16
35.
A(n) _____________________ is all the possible outcomes of an experiment.
a)
sample space
b)
trial
c)
experiment
d)
event
36.
Based on a sample survey, a company claims that 35% of their customers are dissatisfied with their products. Of the 1,500 responses, you would expect _____ customers to be satisfied.
a)
525
b)
650
c)
975
d)
350
37.
Miss Ward spins a wheel to determine the number of homework problems to assign. There are 20 sections labeled 1–20. What is the probability that there will be fewer than 13 problems assigned for homework?
a)
13/20
b)
3/5
c)
4/9
d)
7/20
38.
Julian selects a card at random from the cards shown. What is the probability that the card Julian selects is a polygon? ( A polygon is a shape with 3 or more straight sides)
a)
½
b)
⅓
c)
⅔
d)
⅚
39.
What is the probability that the person picked will be a boy given they speak German?
a)
8/11
b)
2/5
c)
4/25
d)
3/11
40.
A survey found that 39% of the population owned dogs, 22% owned cats, and 8% of the population owned both a cat and a dog? Find the probability that a person owns a cat or a dog.
a)
0.08
b)
0.53
c)
0.61
d)
0.36
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