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Probability and Stats Review

Total questions: 66

Worksheet time: 2hrs 56mins

Name
Class
Date
1.

What is the probability of flipping a coin, getting tails?

a)

1/2

b)

1/3

c)

1/4

d)

Never, Tails never fails.

2.

What is the probability of spinning yellow?

a)

1/11

b)

1/12

c)

1/4

d)

3/4

3.
Find the theoretical probability of NOT landing on yellow if you spin the spinner.
a)
1/8
b)
7/8
c)
1
d)
7
4.
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
5.

What is the probability of spinning a red?

a)

1/5

b)

2/5

c)

1/2

d)

1/4

6.

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a dime?

a)

2/11

b)

5/6

c)

1/3

d)

5

7.
You spin the spinner. How many possible outcomes are there?
a)
4
b)
8
c)
1
d)
6
8.
Find the theoretical probability of landing on orange or red if you spin the spinner.
a)
0
b)
3/8
c)
2/8
d)
1/4
9.
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
10.

Theoretical P(4)

a)

3/6

b)

1/6

c)

1/2

d)

4/6

11.

Theoretical P(Green or Red)

a)

2/6

b)

1/5

c)

2/5

d)

1/5

12.

Brooke has a box of crayons. 45 are yellow, 12 are green, 25 are blue, and 7 are red. If Brooke selects a crayon at random, which color crayon would she be most likely to select?

a)

yellow

b)

green

c)

blue

d)

red

13.

If the probability of an event is 0.99, which of the following best describes the event?

a)

The event will never occur

b)

There is a small chance that the event will occur

c)

The event is likely to occur

d)

The event will definitely occur

14.

You completed an experiment where you rolled a dice 12 times and recorded your data in the table above. What is the experimental probability of rolling a 3?

a)

0%

b)

100%

c)

50%

d)

25%

15.

You completed an experiment where you rolled a dice 12 times and recorded your data in the table above. What is the experimental probability of rolling a 4?

a)

2/6

b)

1/6

c)

1/12

d)

5/12

16.

You completed an experiment where you rolled a dice 12 times and recorded your data in the table above. What is the experimental probability of rolling a 5?

a)

1/3

b)

2/3

c)

1/12

d)

2/12

17.

You completed an experiment where you rolled a dice 12 times and recorded your data in the table above. What is the experimental probability of rolling an odd number?

a)

5/12

b)

1/12

c)

7/12

d)

11/12

18.

You completed an experiment where you rolled a dice 12 times and recorded your data in the table above. What is the experimental probability of rolling a number less than 7?

a)

0%

b)

100%

c)

50%

d)

75%

19.
_______ is a part of a group being surveyed.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
20.
_______ is the entire group of objects or individuals considered for a survey.
a)
Sample
b)
Population
c)
Random Sample
d)
Quartile
21.
A city council member wanted to know how her constituents felt about a planned rezoning. She randomly selected 75 names from the city phone directory and conducted a phone survey.
a)
The population is everyone listed in the city phone directory; the sample is the 75 people selected.
b)
The population is residents of the city; the sample is the registered voters in the city.
c)
The population is registered voters in the city; the sample is everyone listed in the city phone directory.
22.
A safety inspector conducts air quality tests on a randomly selected group of 7 classrooms at an elementary school.
a)
The population is all classrooms in the district; the sample is the 7 classrooms selected.
b)
The population is all classrooms in the elementary school; the sample is the 7 classrooms selected.
c)
The population is all elementary students in the school; the sample is the students in the 7 classrooms selected.
23.

A student chooses a random sample of 50 out 400 students. He finds that 7 students have traveled outside the United States. Predict the number of students who have traveled outside the United States.

a)

48 students

b)

56 students

c)

60 students

d)

64 students

24.

A metal fabricating company produces 150,000 souvenir tokens each year. In a random sample of 400 tokens, 3 have stamping errors. Predict the number of coins that will have stamping errors in a year.

a)

1125 tokens

b)

1450 tokens

c)

1625 tokens

d)

1800 tokens

25.

Our high school students council surveyed 80 out of 450 students and asked how they feel about starting school later. 56 students said they would like to start school later. Predict the number of students that would like to start school later.

a)

255 students

b)

285 students

c)

300 students

d)

315 students

26.

The mall sent a survey to 560 people. They found that 46 out of 108 people said they would shop at the mall if it opened this weekend. Predict the number of people who would shop at the mall.

a)

189 people

b)

204 people

c)

230 people

d)

239 people

27.
Find the mean of these numbers:
2, 57, 38, 42, 6
a)
29
b)
38
c)
50
d)
145
28.
Find the median of these numbers:
4,2,7,4,3
a)
2
b)
5
c)
7
d)
4
29.
To find the _________ you add up all the numbers and then divide by how many numbers you have.
a)
Mean
b)
Median
c)
Mode
d)
Range
30.
To find the ______ you put all numbers in order from least to greatest and then take the largest number minus the smallest number.
a)
Mean
b)
Median
c)
Mode
d)
Range
31.
To find the ________ you put all numbers in order from least to greatest and find the number that is in the middle.
a)
Mean
b)
Median
c)
Mode
d)
Range
32.
Find the mode:
5, 0, 9, 9, 3, 0, 5, 5, 4
a)
9
b)
5
c)
3
d)
7
33.
Find the mean:
28, 18, 19, 18, 17
a)
20
b)
18
c)
11
d)
19
34.
What is the minimum value?
a)
64
b)
58
c)
66
d)
60
35.
What is the maximum value?
a)
58
b)
66
c)
64
d)
60
36.
What value is the lower quartile?
a)
66
b)
58
c)
60
d)
64
37.
What is the median?
a)
62
b)
58
c)
66
d)
60
38.
What is the interquartile range (IQR)?
a)
4
b)
64
c)
60
d)
8
39.
Which box and whisker plot has the highest median?
a)
Top plot
b)
Bottom plot
40.
What is the median of the data?
a)
200
b)
100
c)
90
d)
140
41.
Which restaurant has a higher median wait time?
a)
Lucy's Steakhouse
b)
Gary's Grill
c)
They are the same
42.

What is the interquartile range (IQR)?

a)

20

b)

25

c)

30

d)

50

43.
What data value is the upper quartile (Q3)?
a)
64
b)
62
c)
66
d)
58
44.
What value is the lower quartile?
a)
66
b)
58
c)
60
d)
64
45.
Find the Median
a)
98
b)
93
c)
78
d)
85
46.
50% of the Car Hops went to 11 or fewer car shows.  True or False?
a)
True
b)
False
47.
75% of the Cruisers went to more than 13 car shows.  True or False?
a)
True
b)
False
48.
What percentage of the data is between 90 and 140?
a)
25 %
b)
50%
c)
75%
d)
100%
49.

What is the probability of rolling a 3 and spinning a red?

a)

1/6

b)

1/4

c)

1/10

d)

1/24

50.

What is the probability of rolling a number greater than 4 and spinning blue?

a)

1/24

b)

1/12

c)

1/6

d)

1/4

51.

What is the probability of rolling an even number and spinning green?

a)

1/8

b)

1/15

c)

4/8

d)

1/10

52.

What is the probability of rolling a number greater than 2 and spinning yellow?

a)

1/24

b)

4/6

c)

1/6

d)

1/2

53.

What is the probability of flipping the coin and getting heads up, then getting a T from the group of letters.

a)

1/2

b)

1/6

c)

2/6

d)

3/12

54.

The age of every third person entering a clothing store.

a)

Population

b)

Sample

55.

The cholesterol levels of 20 patients in a hospital with 100 patients.

a)

Population

b)

Sample

56.

The drink order of every person entering Starbucks.

a)

Population

b)

Sample

57.

A survey of every teacher at Lewis & Clark about their favorite snack

a)

Population

b)

Sample

58.

Your school has 450 students. You ask 45 of them to participate in a survey. Which group is the sample?

a)

450 students

b)

45 students

59.

Your school has 450 students. You ask 45 of them to participate in a survey. Which group is the population?

a)

450 students

b)

45 students

60.

Ben has two marbles of the same size in his pocket, a green one and a red one. He puts his hand into his pocket and, without looking, takes out a red marble.

a)

impossible

b)

unlikely

c)

even chance

d)

likely

e)

certain

61.

Cindy has three marbles of the same size in her pocket, a green, a blue and a red marble. She puts her hand into her pocket and, without looking, takes out a red marble.

a)

impossible

b)

unlikely

c)

even chance

d)

likely

e)

certain

62.

Leroy has six red marbles of the same size in his pocket. He puts his hand into his pocket and, without looking, takes out a blue marble.

a)

impossible

b)

unlikely

c)

even chance

d)

likely

e)

certain

63.

Nosipho has ten marbles of the same size in her pocket, 6 white and 4 red marbles. She takes out a white marble when she puts her hand in her pocket without looking.

a)

impossible

b)

unlikely

c)

even chance

d)

likely

e)

certain

64.
What is the likelihood of selecting a rose colored crayon?
a)
unlikely
b)
as likely as not likely
c)
likely
d)
certain
65.
Theoretical Probability is?
a)
What Should happen
b)
What does happen
c)
What Will Happen
d)
What I want to Happen
66.

Experimental Probability is ....

a)

What I want to happen

b)

What should happen

c)

What happens in an experiment

d)

What will happen