Quiz about Frequency Distribution

Question 1

A collection of observation produced by sorting them into classes and showing their frequency of occurrence in each class.

Accepted Answer

Frequency distribution table

Answer

Statistics table

Answer

Distribution column

Answer

Frequency Graph

Question 2

In the second row with a frequency of 42, what is the class boundary?

Accepted Answer

9.5 - 19.5

Answer

10 - 19

Answer

10.5 - 18.5

Answer

10.5 - 19.5

Question 3

What is the total frequency?

Accepted Answer

225

Answer

200

Answer

215

Answer

224

Question 4

According to the portion of the frequency table given, how many people have an MBA?

Accepted Answer

20

Answer

9

Answer

60

Answer

not enough information

Question 5

Sam's team has scored the following numbers of goals in recent games

2, 3, 1, 2, 1, 3, 2, 3, 4, 5, 4, 2, 2, 3

What type of distribution for the above data?

Accepted Answer

Raw data

Answer

Ungrouped frequency distribution table

Answer

Grouped frequency distribution table

Answer

Cummulative frequency

Question 6

Given above are marks obtained by 20 students in Math out of 25.

Find the value of x.

Accepted Answer

8

Answer

4

Answer

5

Answer

7

Question 7

Given both table above are marks obtained by 20 students in Math out of 25. What are different between the tables?

Accepted Answer

A: Ungrouped frequency distribution table

B: Grouped frequency distribution table

Answer

A: Cumulative frequency

B: Ungrouped frequency distribution table

Answer

A: Ungrouped frequency distribution table

B: Cumulative frequency

Answer

A: Grouped frequency distribution table

B: Cumulative frequency

Question 8

The table above shows a cumulative frequency distribution of runners' ages. According to the table, how many runners are in their forties?

Accepted Answer

7

Answer

25

Answer

6

Answer

10

Question 9

The table shows the times, in minutes, that people waited in a supermarket queue.

What are the value of a, b, c and d respectively?

Accepted Answer

2, 3, 5, 10

Answer

0, 2, 5, 10

Answer

2, 5, 10, 20

Answer

16, 27, 39, 18

Question 10

The graph shows the number of nails in a sample of 200 packets from a factory.

How many packets contained fewer than 98 nails?

Accepted Answer

24

Answer

20

Answer

30

Answer

34

Question 11

The histogram shows results of a Mathematics test.

How many students scored more than 50%?

Accepted Answer

20

Answer

50

Answer

40

Answer

30

Question 12

By completing the frequency column of this table, what is the total frequency?

Accepted Answer

70

Answer

50

Answer

60

Answer

80

Question 13

The speed limit on a road was 40 mph. How many cars were exceeding the speed limit?

Accepted Answer

13

Answer

27

Answer

25

Answer

15

Question 14

The histogram shows the times taken by a group of students to complete a Maths test.

Estimate the number of students who took longer than 30 minutes to complete the test.

Accepted Answer

20

Answer

5

Answer

10

Answer

15

Question 15

What is class width of the following frequency distribution?

Accepted Answer

5

Answer

3

Answer

4

Answer

19

Question 16

What is the range?

Accepted Answer

biggest - smallest

Answer

average

Answer

the middle

Answer

happening the most

Question 17

What is another name for the ogive?

Accepted Answer

Cumulative Frequency Graph

Answer

Histogram

Answer

Frequency Polygon

Answer

Pareto Chart

Question 18

What are the true class boundaries for the class interval 8 - 9?

Accepted Answer

7.5 - 9.5

Answer

8.5 - 9.5

Answer

8.55 - 9.55

Answer

8 - 9

Question 19

In the construction of a frequency distribution, it is a good idea to have overlapping class limits, such as 10-20, 20-30, 30-40.

Accepted Answer

False

Answer

True

Question 20

Use the given frequency distribution to find the

(a) class width

(b) midpoints of the first class

(c) boundaries of the first class

Accepted Answer

(a) 3

(b) 51

(c) 49.5 - 52.5

Answer

(a) 3

(b) 51

(c) 50 - 52

Answer

(a) 2

(b) 51.5

(c) 50 - 52

Answer

(a) 2

(b) 51.5

(c) 49.5 - 52.5

Question 21

Identify the class with the highest relative frequency.

Accepted Answer

105 - 115

Answer

95 - 105

Answer

115 - 125

Answer

125 - 135

Question 22

Use the frequency histogram to determine the class width

Accepted Answer

10

Answer

7

Answer

8

Answer

9

Question 23

Use the ogive to approximate the cumulative frequency for a height of 72 inches.

Accepted Answer

48

Answer

36

Answer

43

Answer

51

Question 24

What would be the cumulative frequency for the third class?

Accepted Answer

18

Answer

5

Answer

12

Answer

17

Question 25

What is the formula for relative frequency?

Accepted Answer

f/N

Answer

f*N

Answer

f-N

Answer

(f+x)/N

Question 26

A table that shows classes or intervals of data entries with a count of the number of entries in each class.

Accepted Answer

Frequency distribution

Answer

Frequency polygon

Answer

Histogram

Answer

Ogive

Question 27

Which interval has 400 employees?

Accepted Answer

33-43

Answer

0-10

Answer

77-87

Answer

66-76

Question 28

How many employees have a salary less than $22,000?

Accepted Answer

350

Answer

50

Answer

0

Answer

10

Question 29

Approximately how many items were longer than 34 cm?

Accepted Answer

7

Answer

None

Answer

8

Answer

7.5

Question 30

What is the relative frequency of students speaking Arabic?

Accepted Answer

24%

Answer

32%

Answer

10%

Answer

2%

Question 31

Which shoe size is the mode?

Accepted Answer

6

Answer

9

Answer

17

Answer

25

Question 32

What is the range of the shoe sizes?

Accepted Answer

5

Answer

4

Answer

16

Answer

9

Question 33

How many people have a shoe size of 6?

Accepted Answer

17

Answer

18

Answer

19

Answer

15.4

Question 34

How many people visited the cinema twice?

Accepted Answer

28

Answer

20

Answer

35

Answer

25

Question 35

What is the highest number of goals scored?

Accepted Answer

5

Answer

8

Answer

1

Answer

6

Question 36

Which of these could be a cumulative frequency graph?

Accepted Answer

Option B is correct

Answer

A.

Question 37

Find the cumulative frequencies.

Accepted Answer

28, 58, 70, 72, 74, 76

Answer

28, 56, 84, 100

Answer

33%, 37%, 20%, 7%, 7%, 7%

Answer

28, 30, 12, 2, 2, 2

Question 38

How many students scored 40% or below on the test?

Accepted Answer

22

Answer

21

Answer

20

Answer

15

Question 39

Find the number of patients who waited for more than 80 min for a doctor.

Accepted Answer

12

Answer

16

Answer

62

Answer

64

Question 40

What is the Midpoint of the third class that has a frequency of 25?

Accepted Answer

80

Answer

117.5

Answer

91

Answer

102

Question 41

What will be the class boundary with the class limit is 64-74?

Accepted Answer

63.5 - 74. 5

Answer

64.5 - 74. 5

Answer

63.5 - 73.5

Answer

64.5 - 73.5

Question 42

What is the total number of frequency?

Accepted Answer

80

Answer

25

Answer

6

Answer

79

Question 43

What is the Cumulative Frequency for the given Grouped Frequency Distribution

Accepted Answer

24, 38, 77, 95, 100

Answer

0, 24, 38, 77, 95, 100

Answer

0, 24, 77, 95, 100

Answer

24, 366, 13104, 235872, 1179360

Question 44

What is the Class Boundaries for the first Class Limit

Accepted Answer

24.5 - 34.5

Answer

25.5 - 34.5

Answer

24.5 - 33.5

Answer

25.5 - 33.5

Question 45

When constructing a Grouped Frequency distribution you the first step is finding the highest and lowest number. The second step is to _______________.

Accepted Answer

Find the Range

Answer

Find the Width

Answer

Subtract .5 and Add .5 to the class limits

Answer

Subtract 1 from your second class limit to find your first upper class limit

Question 46

When constructing a Grouped Frequency Distribution the classes will always be between 5 and 20?

Accepted Answer

True

Answer

False

Question 47

When finding the Class Boundaries for a Grouped Frequency Distribution you will _______ to the lower limits and __________ to the upper limits.

Accepted Answer

Subtract .5 to the lower limits and Add .5 to the upper limits

Answer

Add .5 to the lower limits and Subtract .5 to the upper limits

Answer

Add lower limit to the upper limit, then divide it by 2

Question 48

The Width must be rounded how?

Accepted Answer

Always round to the next whole number

Answer

To the nearest 10th

Answer

Keep it how it comes out

Question 49

What is the width of the Grouped Frequency Distribution given.

Accepted Answer

10

Answer

9

Answer

100

Answer

39

Frequency Distribution

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