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Math Chapter 12 - Central Tendencies

Total questions: 53

Worksheet time: 13hrs 15mins

Name
Class
Date
1.

Jeff has four grades from tests and IXL. They are all weighted equally. If Jeff's grades are 100, 96, 96, and 100, what Jeff's current average grade?

a)

96

b)

97

c)

98

d)

100

2.

Christian has six grades from tests and IXL. They are all weighted equally. If Christian's grades are 100, 96, 96, 88, 70, and 100, what is the current average grade? (Round to the nearest whole number)

a)

90

b)

91

c)

92

d)

93

3.

The temperature in Springfield on this date in the last ten years were: 68, 68, 69, 70, 72, 70, 68, 75, 55, 67. What is the average temperature on this date over the last ten years? (Round to nearest whole number)

a)

60

b)

61

c)

68

d)

69

4.

Jessica has five grades from assessments and quizzes. They are all weighted equally. If her grades are 50, 70, 88, 70, and 88, what is her current average grade?

a)

71

b)

72

c)

73

d)

74

5.
What is the mean of these numbers?
4,5,5,2,3,3,2,8
a)
40
b)
24
c)
4
d)
256
6.
What is the mean for these numbers?
5,5,5,5
a)
5
b)
20
c)
15
d)
100
7.
Find the mean:
28, 18, 19, 18, 17
a)
20
b)
18
c)
11
d)
19
8.

What is another word for AVERAGE?

a)

Mode

b)

Median

c)

Mean

d)

Not nice

9.

Calculate the mean.

16, 5, 7, 12

a)

9

b)

6

c)

12

d)

10

10.

Find the median for the set of numbers:

23, 37, 11, 58, 13, 45

a)

30

b)

23

c)

37

d)

28

11.

Find the median for the set of numbers:

85, 42, 64, 71, 39, 56, 26

a)

71

b)

42

c)

56

d)

60

12.

Find the median for the set of numbers:

60, 52, 11, 29, 46, 9, 33

a)

39

b)

33

c)

29

d)

46

13.
What is the median?
a)
biggest- smallest
b)
average
c)
the middle #
d)
# that happens the most
14.
What is the median of this data set?
7.3, 2.9, 1.5, 0.6, 3.8
a)
2.9
b)
3
c)
3.5
d)
4.3
15.
When finding the median, what do you do if there are two middle numbers?
a)
Add them together and divide by 2
b)
Write them both as the answer
c)
Give up
d)
Pick one
16.
In a music academy, 24 students learn to play music in the Guitar, 25 in the Piano,16 in the Saxophone, 22 in drums, 32 in the Trumpet, 15 in the Violin and 32 in the Woodwind. Find the median.
a)
24
b)
16
c)
25
d)
24.5
17.
The science scores of nine students in a class are 72, 94, 56, 71, 88, 95, 59, 98 and 60. What is the median of the scores?
a)
72
b)
73
c)
56
d)
75.5
18.
In order to find the median, the data must be sorted from least to greatest first.
a)
True
b)
False
19.

The mode is the number ________________________.

a)

you see most

b)

you see least

c)

you don't see

d)

you see first

20.

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the MODE.

12,10,10,10,13,12,11,13,10

a)

10

b)

12

c)

10 and 12

d)

No Mode

21.

What is the mode of the following data set?

5, 7, 7, 8, 12 , 12, 5, 6, 13, 12

a)

5

b)

7

c)

12

d)

no mode

22.
The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?
a)
99 was the highest score on the test.
b)
More students received a 94 than any other score
c)
No student scored below a 50
d)
A score of 91 was slightly below average.
23.

Allen the Astronaut has to carefully measure his weight before going into space. Over the last week, here are his measurements in kilograms: 87.1, 87.6, 86.9, 87.0, 87.5, 87.2. Find his mode weight.

a)

87.2 kilograms

b)

There isn't one.

c)

87.15 kilograms

d)

0.7 kilograms

24.

Boris the baker bakes a lot of bread. The number of loaves he gets from a batch varies though. Here's how many loaves he's gotten from the last couple batches: 10 loaves, 9 loaves, 10 loaves, 9 loaves, 11 loaves, 8 loaves, 10 loaves.


What is the mode?

a)

9.6 loaves

b)

10 loaves

c)

3 loaves

25.

Find the range of the data.

63, 71, 65, 66, 87, 53

a)

32

b)

33

c)

34

d)

35

26.

Find the range of the data.

16, 28, 6, 19, 21, 15, 22, 33, 17

a)

18

b)

27

c)

30

d)

12

27.

The table shows the ages of automobiles in the parking lot. The range of the ages is 12 years. Find the missing age.

a)

12

b)

13

c)

14

d)

15

28.

What is the range of Susie's Test Scores?

a)

40

b)

30

c)

15

d)

25

29.

Find the range of the data.

63, 71, 65, 66, 87, 53

a)

32

b)

33

c)

34

d)

35

30.
What is the range?
a)
average
b)
biggest-smallest
c)
the middle #
d)
# happening the most
31.
93, 100, 82, 93, 67, 100, 67, 82, 93, 93
What is the range of this data set?
a)
26
b)
93
c)
33
d)
82
32.
Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142.
What is the range of Roger's scores?
a)
193
b)
127
c)
60
d)
66
33.
Lizzy had test scores of:   72, 94, 108, 60
What is the RANGE of her test scores?
a)
12
b)
72
c)
48
d)
98
34.
the scores in a basketball match are as follows:
7,13,18,24,9,3,18
which score occurred most often?
a)
9
b)
13
c)
18
d)
24
35.
the following is time (in seconds) taken for five men to run in a sprint race
59,65,61,62,55
what is the mean of the time taken?
a)
60.0
b)
60.4
c)
61.0
d)
61.4
36.
What is the mean?
a)
# happening the most
b)
the number in the middle
c)
biggest-smallest
d)
the average
37.
What is the mode?
a)
# happening the most
b)
the average
c)
biggest - smallest
d)
the middle #
38.
A data set can have more than one mode
a)
True
b)
False
39.
The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?
a)
5
b)
6
c)
9
d)
11
40.

The Mean, Median, Mode, and Range are also known as?

a)

Central Tendency Measures

b)

Middle values

c)

Center values

d)

Tendency of the middle

41.

What is the mode?

a)

The middle number in an ordered set of data.

b)

The difference between the greatest and least amount in the data set

c)

The value that occurs the most often in a data set

d)

The sum of all the numbers in a data set divided by the size

42.

Which is a synonym for "average?"

a)

median

b)

mode

c)

range

d)

mean

43.

There can be more than one mean

a)

True

b)

False

44.

What do you do if there are two numbers in "the middle" when you are finding the median?

a)

Pick your favorite number

b)

They are both the median

c)

Find the mean of the two numbers

d)

None of the above

45.

What is the first step when looking at a data set?

a)

Find the mean

b)

Sort the data into categories

c)

Find the range

d)

Put the data in ascending order

46.

The mean of the data set can be found by...

a)

finding the sum of the numbers and then dividing by the total amount of numbers in the data set

b)

subtracting the minimum from the maximum

c)

choosing the middle number

d)

choosing the number that occurs most

47.

The range of a data set can be found by...

a)

subtracting the minimum from the maximum

b)

choosing the middle number

c)

choosing the number that occurs most

d)

finding the sum of the numbers and then dividing by the total amount of numbers in the data set

48.

The mode of a data set can be found by...

a)

subtracting the minimum from the maximum

b)

choosing the middle number

c)

choosing the number that occurs most

d)

finding the sum of the numbers and then dividing by the total amount of numbers in the data set

49.

The median of a data set can be found by...

a)

subtracting the minimum from the maximum

b)

choosing the middle number

c)

choosing the number that occurs most

d)

finding the sum of the numbers and then dividing by the total amount of numbers in the data set

50.

The mean of a data set can be found by...

a)

subtracting the minimum from the maximum

b)

choosing the middle number

c)

choosing the number that occurs most

d)

finding the sum of the numbers and then dividing by the total amount of numbers in the data set

51.
In the last 5 games, Kevin Durant scored 22, 22, 18, 12, and 21 points. What is Durant's Mean (Average) score per game?
a)
 19 points per game
b)
95 points per game
c)
18.6 points per game
d)
22 points per game
52.
What is the mode of the data set:
Black  Blue  Red
Pink  Black  Black
Gray  Green  Blue
Blue  Blue  Red
Yellow  Blue  Red
a)
Blue and Black
b)
Blue
c)
Red
d)
Black
53.
If my data set had an outlier that was quite a bit more than the other numbers in my data set, what would it do to my average
a)
leave it the same
b)
increase the average
c)
decrease the average

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