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Statistics Review

Total questions: 60

Worksheet time: 2hrs 0mins

Name
Class
Date
1.
At Dominique's Donuts the number of donut holes in a bag can vary. Help Dominique find the mode.
12,10,10,10,13,12,11,13,10
a)
13
b)
12
c)
11
d)
10
2.
Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?
a)
193
b)
127
c)
60
d)
66
3.
What is the mode?
a)
# happening the most
b)
the average
c)
biggest - smallest
d)
the middle #
4.
The scores awarded to 25 students for an assignment were as follows:
4  7  5  9  8  6  7  7  8  5  6  9  8    5  8  7  4  7  3  6  8  9  7  6  9
What is  the mode?
a)
6
b)
7
c)
8
d)
9
5.
Find the mean of these numbers:
5,11,2,12,4,2
a)
4.1
b)
6
c)
4.5
d)
4
6.
Find the median of these numbers:
4,2,7,4,3
a)
2
b)
5
c)
7
d)
4
7.
Find the median, mode and range: 
3, 5, 7, 9, 11, 8, 3
a)
median:7  mode:3  range:7
b)
median:6  mode:3  range:7
c)
median:7  mode:3  range:8
8.
Find the mean of these numbers:
2, 57, 38, 42, 6
a)
29
b)
38
c)
50
d)
145
9.
To find the 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
10.
In order to find the median, the data must be sorted from least to greatest first.
a)
True
b)
False
11.
What is the range?
a)
average
b)
biggest-smallest
c)
the middle #
d)
# happening the most
12.
Find the range.
7, 1, 1, 7, 1, 4, 1
a)
6
b)
5
c)
7
d)
3
13.
Find the median.
12, 5, 9, 18, 22, 25, 5
a)
9
b)
8
c)
12
d)
18
14.
Find the range.
12, 5, 9, 18, 22, 25, 5
a)
20
b)
15
c)
22
d)
18
15.
The number of miles that Kiki cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Kiki cycled?
a)
24
b)
36
c)
39
d)
52
16.
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
17.
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
18.
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
19.
Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8
a)
3
b)
5
c)
1
d)
2
20.
Find the Mean Absolute Deviation:  5, 11, 2, 7, 16.  The Mean is 8.2 
a)
3.2
b)
2.8
c)
1.2
d)
4.2
21.
Which mean absolute deviation would be more consistent? 4.2 or 8.5?
a)
4.2
b)
8.5
22.
True or false? :The larger the Mean Absolute Deviation the more consistent the data is.
a)
True
b)
False
23.
Which dot plot shows more consistency? a or b?
a)
a
b)
b
24.
Which dot plot shows more variability? a or b?
a)
a
b)
b
25.
A data set can have more than one median?
a)
True
b)
False
26.
Find the mode for the following goals scored by soccer team.
3,   3,   0,   2,   2,   2,   5,   5,   8,   4
a)
8
b)
4
c)
3
d)
2
27.
The range is found by _________________ .
a)
adding the quartiles
b)
subtracting the quartiles
c)
subtracting the maximum value minus the minimum value
d)
the golf course
28.
Find the median for the following prices;
$12.50,    $15.50,   $15,   17.50,   $11.50
a)
$12.50
b)
$17.50
c)
$15
d)
$11.50
29.
Mean Absolute Deviation is a measure of _________________________ .
a)
central tendency
b)
variation
c)
average 
d)
anger
30.
Find the median of following test grades:
100   80   70   90   100
a)
88
b)
100
c)
30
d)
90
31.
Mean is found by _________________________ .
a)
finding the sum of the data
b)
finding the middle
c)
finding the sum of the data, then dividing by the amount of numbers
d)
subtracting the minimum minus the maximum
32.

Find the Range of the following numbers.

12, 5, 2, 20, 15, 25

a)

20

b)

25

c)

23

d)

5

33.

Find the Mode ofthe following numbers.

23, 3, 2, 23, 5, 2, 23, 6, 50

a)

2

b)

23

c)

5

d)

50

34.

Find the Median of the following data points.

18, 21, 28, 24, 22, 37, 36, 32, 31, 30

a)

22

b)

37

c)

29

d)

37

35.
Find the mean of these numbers:
5,11,2,12,4,2
a)
4.1
b)
6
c)
4.5
d)
4
36.
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
37.
How would you describe the mean?
a)
difference
b)
average
c)
middle
d)
most repeated number
38.

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

39.

How do you find the mean?

a)

Add all the numbers up and divide by how many numbers there were

b)

Put the numbers in order from least to greatest and find the middle

c)

Look for the number that appears the most times

d)

Subtract the smallest number from the biggest number

40.

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

41.
What is the mean of these numbers?
4,5,5,2,3,3,2,8
a)
40
b)
24
c)
4
d)
256
42.

Calculate the mean.

2, 9, 10, 6, 8

a)

8

b)

4

c)

7

d)

22

43.
What is the median?
a)
biggest- smallest
b)
average
c)
the middle #
d)
# that happens the most
44.
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
45.
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
46.

The mode is the number ________________________.

a)

you see most

b)

you see least

c)

you don't see

d)

you see first

47.
Find the median:
3, 5, 7, 4, 3, 1
a)
3 and 4
b)
There isn't one
c)
3.5
d)
3
48.
What is the mode of this data set?
a)
10
b)
7
c)
18
d)
9
49.

What is the range of miniature golf scores?

a)

44 points

b)

29 points

c)

33 points

d)

39 points

50.

Find the range of the data.

63, 71, 65, 66, 87, 53

a)

32

b)

33

c)

34

d)

35

51.

How do you find the MAD (mean absolute deviation)?

a)

1) Find the median

2) Find the difference between every data point and the median.

3) Find the median of the distances

b)

1) Put the numbers in order from least to greatest

2) Find the numbers in the middle

c)

1) Find the mean

2) find the distance between every data point and the mean

3) find the average of the distances

d)

Trick question... you don't

52.

What is the IQR for the data?

a)

7

b)

30

c)

37

d)

33

53.

If you would use the median, then pick _______.

a)

MAD

b)

IQR

54.

If you would use the mean, then pick ______.

a)

MAD

b)

IQR

55.

If the data is symmetric, choose the _______ for the best measure of center.

a)

mean

b)

median

c)

mode

56.

If the data is skewed left, choose the _______ for the best measure of center.

a)

mean

b)

median

c)

mode

57.

If the data set is skewed right, choose the _______ for measure of center.

a)

mean

b)

median

c)

mode

58.

What is the IQR?

a)

The diffference between the minimum and the maximum value.

b)

The difference between Q3 and Q1.

59.

If there is an outlier, choose the ______ for the best measure of center.

a)

median

b)

mean

c)

mode

60.
The IQR is a measure of __________________ .
a)
center
b)
variation
c)
quartiles
d)
range

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