wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Introduction to Statistics

Total questions: 65

Worksheet time: 3hrs 31mins

Name
Class
Date
1.
Study the data set shown. 
15, 14, 19, 16, 22, 20, 17, 20, 29, 21, 18
Which statement is true about this set of data?
a)
The range is 3
b)
The range is 20
c)
The median is 18.5
d)
The median is 19
2.

descriptive information data

(a)  

3.

numerical information data

(a)  

4.

counted data

(a)  

5.

It is a survey conducted by asking everybody or whole population

(a)  

6.

To be a good sample, each person should be chosen (a)  

7.

you can survey people through (a)   (give one)

8.

Measured data

(a)  

9.

Number of customers in a shop

a)

discrete

b)

continouos

10.

What type of data is this? Height of students in a school

a)

discrete data

b)

continouos data

11.

Number of petals on a flower

a)

discrete

b)

continouos

12.

The mass of the chocolate cake is 250 g.

a)

Qualitative

b)

Quantitative

13.

The ocean water looked bluish green.

a)

Qualitative

b)

Quantitative

14.
a)

Discrete

b)

Continuous

15.
a)

Discrete

b)

Continuous

16.
a)

Discrete

b)

Continuous

17.
How many students spent over 40 minutes but under 60 minutes studying?
a)
22 Students
b)
30 Students
c)
8 Students
d)
5 Students
18.

How many people purchased no food and no drink?

a)
60
b)
10
c)
20
d)
200
19.

For how many weeks was the data collected?

a)

48

b)

50

c)

52

d)

54

20.
The graph below shows the number of sunny days and rainy days in a city during four months.

Based on the graph,how many more sunny days than rainy days did this city have during the months of April, May, and June?
a)
21
b)
56
c)
26
d)
20
21.
How many people have two or less books in their desk?
a)
4
b)
5
c)
6
d)
7
22.

How many times did Mary score below a 60 on her tests?

a)

4

b)

5

c)

3

d)

0

23.
How many total people took the survey?
a)
50
b)
150
c)
100
d)
200
24.
How many students scored 93% or less?
a)
6
b)
16
c)
14
d)
13
25.
What is the highest score in the class?
a)
88%
b)
100%
c)
13
d)
98%
26.
Which interval has 400 employees?
a)
33-43
b)
0-10
c)
77-87
d)
66-76
27.
How many students are between 60 and 63 inches tall?
a)
3
b)
0
c)
12
d)
7
28.

Is this an example of a population or a sample?


The number of pets in all households in a city.

a)

population

b)

sample

29.

Is this an example of a population or a sample?


The number of pets in one household in a city.

a)

population

b)

sample

30.

Is this sample biased or unbiased?


A sample of 50 randomly selected students.

a)

Biased

b)

Unbiased

31.

Is this sample biased or unbiased?


A sample of 50 students who currently have an A in math.

a)

Biased

b)

Unbiased

32.

Do they have more fish or cats?

a)

Fish

b)

Cats

33.

Which class had the highest test score?

a)

1st period

b)

2nd period

34.

Which class had the highest median?

a)

2nd period

b)

1st period

35.
A survey should always be ____ and ____.
a)
random and biased
b)
random and unbiased
36.

At an assembly 7 out of 10 students who entered the gym were carrying a backpack. Based on this information, if 700 students were at the assembly, how many students could be expected to be carrying a backpack?

a)

49

b)

490

c)

210

d)

421

37.
Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?
a)
thirty students who are often tardy
b)
thirty students who are rarely tardy
c)
thirty of her friends
d)
thirty randomly selected students from her school
38.

A public library asked every 10th person who entered to name the type of book they were getting

a)

Biased

b)

Unbiased

39.
A sample should be
a)
representative of  only middle school students only
b)
a very large group
c)
representative of the population
d)
representative of people who volunteer
40.

The Student Council asked every tenth student in the lunch line how they preferred to be contacted with school news. The results are shown in the table. Is this an unbiased sample? If yes, suppose there are 684 students at the school. How many can be expected to prefer E-mail?

a)

No, it's a biased sample

b)

432

c)

304

d)

16

41.

A hospital wants to open a gym. They ask the night-shift ER staff when they would use the gym.

a)

Biased

b)

Unbiased

42.

A radio station asks its listeners to dial one of two numbers to indicate their preference for one of two candidates in an upcoming election. Of the responses received, 76% favored candidate A. If there are 1,500 registered voters, how many will vote for candidate A?

a)

1,140

b)

6

c)

1,974

d)

100

43.

To determine the number of umbrellas the average household in the United States owns, a survey of 100 randomly selected households in Arizona is conducted. Of the households, 24 said that they own 3 or more umbrellas. The researcher concluded that 24% of the households in the United States own 3 or more umbrellas. Is the this a valid conclusion? Justify your answer.

a)

Valid. The sample is biased.

b)

Not valid. The sample is biased.

c)

Valid. The sample is unbiased.

d)

Not valid. The sample is unbiased.

44.

A company makes DVDs and randomly selects 25 from 1500 to test them to see if they work.

a)

Biased

b)

Unbiased

45.

What is the mean of this set of data?

2, 15, 7

a)

24

b)

3

c)

6

d)

8

46.
Find the median of these numbers:
2, 3, 4, 5, 5, 7
a)
4
b)
5
c)
4.5
d)
6
47.
If you score 76, 85, 97, and 83 on your math tests, what would your median score be? 
a)
84
b)
90
c)
85
d)
88
48.
A data set can have more than one median?
a)
True
b)
False
49.
A data set can have more than one mode
a)
True
b)
False
50.

To find the average or mean of a set of numbers, add up all the items and divide by...

a)

2

b)

The minimum

c)

The maximum

d)

The number of items

51.
What is the range?
a)
average
b)
biggest-smallest
c)
the middle #
d)
# happening the most
52.
What is the mode?
a)
# happening the most
b)
the average
c)
biggest - smallest
d)
the middle #
53.
Find the range.
5, 15, 10, 20, 15, 10, 15
a)
5
b)
10
c)
15
d)
13
54.

Find the median, mode and range:

3, 5, 7, 9, 11, 8, 3

a)

median:7 mode:9 range:8

b)

median:6 mode:3 range:7

c)

median:7 mode:3 range:8

55.

Calculate the MODE for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

a)

7

b)

7.44

c)

8

d)

7 and 8

56.

What is the mean (average) of this data? Round to the nearest tenth.

a)

8.0

b)

8.3

c)

7.5

d)

9.0

57.
What is the mode in this set of numbers:
7, 14, 20, 3, 7, 14, 2, 14, 7
a)
7
b)
20
c)
7 & 14
d)
none of the above
58.
What is the range of the dot plot?
a)
9
b)
5
c)
4
d)
6
59.

What test score is the mode of Mary's data?

a)

49

b)

55

c)

85

d)

73

60.
If you score 76, 85, 97, and 83 on your math tests, what would your median score be? 
a)
84
b)
90
c)
85
d)
88
61.

What is the mean of this set of data?

2, 15, 7

a)

24

b)

3

c)

6

d)

8

62.

Find the range of these numbers: 1,2,3,4,5,6,7,8,9,10

a)

4

b)

9

c)

8

d)

2

63.

Find the Median of these numbers: 3, 6, 7, 4, 9, 10, 3, 2

a)

0

b)

2

c)

5

d)

1

64.

Find the mode of these numbers: 2,5,3,2,6,7,2,9,0,1

a)

5

b)

2

c)

0

d)

6

65.

Find the mean of these numbers: 3, 47, 203, 5, 42

a)

1,236

b)

60

c)

40

d)

204

Similar Resources on Wayground

Properties of Exponents Review

60 questions

Properties of Exponents Review

quiz

Worksheet

•

6th - 8th Grade

Area, Surface Area, Volume, & Cross Sections

64 questions

Area, Surface Area, Volume, & Cross Sections

quiz

Worksheet

•

7th Grade

Saxon Math Vocabulary Lessons 1-50

60 questions

Saxon Math Vocabulary Lessons 1-50

quiz

Worksheet

•

5th - 8th Grade

Latihan soal PAT Kelas 7

67 questions

Latihan soal PAT Kelas 7

quiz

Worksheet

•

7th Grade

Pre-Test: Basic Math concepts

70 questions

Pre-Test: Basic Math concepts

quiz

Worksheet

•

7th - 8th Grade

Number Systems Unit Assessment

70 questions

Number Systems Unit Assessment

quiz

Worksheet

•

5th - 7th Grade

Peperiksaan Pertengahan Tahun 2020

70 questions

Peperiksaan Pertengahan Tahun 2020

quiz

Worksheet

•

7th Grade

Show What You Know Review 2025

69 questions

Show What You Know Review 2025

quiz

Worksheet

•

6th Grade - University