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Mean and MAD and Statistics

Total questions: 57

Worksheet time: 2hrs 4mins

Name
Class
Date
1.

Calculate the mean:

23, 15, 8, 12, 26, 5, 22, 9

2.

Calculate the mean:

81, 69, 72, 80, 67, 62, 78, 74, 71, 86

a)

82.2

b)

92

c)

67.2

d)

74

3.

Calculate the mean:

54, 38, 52, 51, 49, 46, 39, 53, 47, 42, 52, 41

a)

47

b)

43.4

c)

51.3

d)

50

4.

Calculate the mean:

25, 36, 34, 17, 22, 31, 38

a)

25.3

b)

29

c)

40

d)

33.8

5.

Calculate the mean:

61, 45, 52, 48, 53, 49, 57, 46, 60, 54, 58

a)

49

b)

53

c)

64.7

d)

58.3

6.

Calculate the mean:

19, 23, 26, 22, 31, 33, 29, 21, 30

a)

23.4

b)

21

c)

29.3

d)

26

7.

Calculate the mean:

95, 88, 79, 93, 82, 90, 94, 85, 91, 83

8.

Calculate the mean:

57, 32, 45, 38, 42, 54, 51, 39, 47, 43, 36, 56

a)

54

b)

49

c)

60

d)

45

9.

Calculate the mean:

36, 47, 35, 28, 23, 32, 49, 46

a)

37

b)

32.8

c)

42.2

d)

29.6

10.

Calculate the mean:

78, 82, 80, 65, 69, 72, 79

a)

25.2

b)

65.6

c)

87.5

d)

75

11.

Calculate the mean:

99, 87, 84, 91, 97, 86, 83, 90, 93

a)

101.2

b)

90

c)

81

d)

73.6

12.

Calculate the mean:

12, 8, 5, 11, 9, 17, 13, 7, 21, 27

(a)  

13.

Calculate the mean:

56, 43, 62, 59, 57, 61, 58, 44

(a)  

14.

Calculate the mean:

69, 73, 62, 67, 64, 62, 75, 78, 81, 77, 84

(a)  

15.
Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8
16.
Find the Mean Absolute Deviation:  5, 11, 2, 7, 16.  The Mean is 8.2 
17.
Which dot plot shows more consistency? a or b?
a)
a
b)
b
18.
Which dot plot shows more variability? a or b?
a)
a
b)
b
19.
What is the first step when calculating the Mean Absolute Deviation?
a)
Find the distance each value is from the mean
b)
Find the mean of the distances
c)
Find the mean of the data
20.
What is the second step when calculating the Mean Absolute Deviation?
a)
Find the distance each value is from the mean
b)
Find the mean of the distances
c)
Find the mean of the data
21.
What is the third step when calculating the Mean Absolute Deviation?
a)
Find the distance each value is from the mean
b)
Find the mean of the distances
c)
Find the mean of the data
22.
Find the MAD:
58, 38, 54, 48, 26, 36
a)
43
b)
20
c)
10
d)
12
23.
Calculate the M.A.D 13, 17, 19, 27
a)
4
b)
19
c)
6
d)
8
24.
What is another word for average?
a)
Mean
b)
Median
c)
Mode
d)
Range
25.
What is Mean Absolute Deviation?
a)
The average distance of a data's values from the mean
b)
The average distance the data is from 0
c)
Absolute Value
d)
Distance
26.
Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8
a)
3
b)
5
c)
1
d)
2
27.
True or false?:The absolute value of a number will always be positive.
a)
True
b)
False
28.
Is the following question statistical or non statistical?
How many cars are in the parking lot?
a)
Statsitical
b)
Non Statistical
29.
Is the following question statistical or non statistical?
What pets does our class have?
a)
Statistical
b)
Non statistical
30.
Is the following question statistical or non statistical?
How many lanterns are hanging in our classroom
a)
Statistical
b)
Non Statistical
31.

Is the following question statistical or non statistical?

How many siblings do each student have?

a)

Statistical

b)

Non Statistical

32.

Is the following question statistical or non statistical?

How many students like the color blue?

a)

Statistical

b)

Non Statistical

33.
Is the following question statistical or non statistical?
How many ceiling tiles are in our classroom?
a)
Statistical
b)
Non Statistical
34.
Is the following question statistical or non statistical?
How tall are the students in our class?
a)
Statistical
b)
Non Statistical
35.
Is the following question statistical or non statistical?
On average, how many water bottles do every class go through daily?
a)
Statistical
b)
Non Statistical
36.

Is the following question statistical or non statistical?

How many people prefer Nike over Adidas?

a)

Statistical

b)

Non Statistical

37.

Is the following question statistical or non statistical?

How many students in our school prefer chocolate chip over oatmeal raisin?

a)

Statistical

b)

Non Statistical

38.
What was the day with the least amount of cars sold? 
a)
Monday
b)
Tuesday
c)
Wednesday
d)
Thursday
39.
How many students had more than 6 candy bars?
a)
5
b)
2
c)
3
d)
1
40.
How many ladies from age 40-50 visited the library?
a)
8
b)
6
c)
7
d)
9
41.
How many students spent over 40 minutes but under 60 minutes studying?
a)
22 Students
b)
30 Students
c)
8 Students
d)
5 Students
42.
How many students received a score of 94%? 
a)
94
b)
4
c)
1
d)
2
43.
What is the highest score in the class?
a)
88%
b)
100%
c)
13
d)
98%
44.
How many total students are in the science class?
a)
13
b)
6
c)
27
d)
25
45.
How many students were greater than or equal to 60 inches tall?
a)
21
b)
11
c)
17
d)
6
46.
Which interval shows the greatest number of pets?
a)
15-19
b)
0-4
c)
5-9
d)
10-14
47.
How many cities have temperatures between 70 degrees and 99 degrees?
a)
44
b)
34
c)
26
d)
62
48.
What is an interval?
a)
A single number
b)
A range of numbers
c)
A percentage
d)
A total amount
49.
21. How many students are represented by the histogram?  
a)
Cannot be determined
b)
9
c)
31
d)
35
50.
How many people watched more than 25 hours of TV last week?
a)
0
b)
10
c)
38
d)
42
51.
The histogram shows the birth weights of 100 new born babies.  How many babies weighed 8 pounds or more?
a)
22
b)
23
c)
30
d)
45
52.
What is incorrect about the following histogram?
a)
The intervals are too small
b)
The intervals overlap
c)
The graph does not start at 0
d)
The axes are not labeled.
53.
Which interval has the greatest number of employees?
a)
11-21
b)
33-43
c)
77-87
d)
44-54
54.
How many people watched more than 6 hours of TV?
a)
10
b)
5
c)
20
d)
17
55.

This is a histogram

a)

true

b)

false

56.
Which interval has the highest frequency?
a)
9 - 10 books
b)
7-8 Books
c)
5-6 Books
d)
3-4 Books
57.
A data value that is much higher or much lower than the other values in a data set.
a)
outlier
b)
inlier
c)
immalier
d)
sublier

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