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Chapter 13 REVIEW

Total questions: 60

Worksheet time: 2hrs 17mins

Name
Class
Date
1.
When finding the median what is the FIRST step?
a)
Mark off the lowest number
b)
Mark off the highest number
c)
Find the Middle
d)
Arrange the number from Least to Greatest
2.
Find the Median of the data set
a)
77
b)
99
c)
80
d)
78.5
3.
Find the mode:
5, 0, 9, 9, 3, 0, 5, 5, 4
a)
9
b)
5
c)
3
d)
7
4.
Find the median:
5, 6, 3, 9, 0, 4, 1, 2, 7
a)
4
b)
4.1
c)
5
d)
4.5
5.
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
6.

Calculate the range of the following

2, 5, 8, 3, 13, 5

a)
11
b)
13
c)
5
d)
8
7.
Find the range.
12, 5, 9, 18, 22, 25, 5
a)
20
b)
15
c)
22
d)
18
8.
A data set can have more than one mode
a)
True
b)
False
9.
A data set can have more than one median?
a)
True
b)
False
10.
The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?
a)
24
b)
36
c)
39
d)
52
11.
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
12.
The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?
a)
94 was the highest score on the test.
b)
More students received a 94 than any other score
c)
No student scored below a 94
d)
A score of 91 was slightly below average.
13.

Given the set of data below, what would be the most meaningful measure?

1, 1, 1, 1, 1, 1, 1, 1, 1, 21

a)

Mean

b)

Median

c)

neither

d)

all measures of center are created equal

14.
If a number is added to the set that is in the middle of the data, how does this affect the range?
a)
increase
b)
decrease
c)
stay the same
d)
both increase and decrease
15.
Find the mean:
28, 18, 19, 18, 17
a)
20
b)
18
c)
11
d)
19
16.

What is the definition of the mean?

a)

The average number in the data set.

b)

The middle number in the data set.

c)

The difference between the highest and lowest numbers in a data set.

d)

The number(s) that occur(s) the most in a data set.

17.
Find the median:
3.8, 4.2, 4.0, 4.2, 4.2
a)
4.2
b)
3.8
c)
4.0
18.

What measure of center is best to use when we have outliers?

a)

mean

b)

median

c)

mode

d)

range

19.

When analyzing numerical data, the best measure of center with NO outlier is:

a)

mean

b)

median

c)

mode

d)

range

20.
The salary of the employees in the office were $15,000; $18,000; $16,000; $14,000; $90,000; and $17,000.  What is the best measure of the central tendency of the salaries?
a)
Mean
b)
Median
c)
Mode
d)
Range
21.

Gabriella’s quiz grades are 88, 92, 92, 96, 98. Gabriella scored a 20 on her sixth quiz. What effect does this score have?

a)

The low score causes the median to increase.

b)

The low score causes the median to decrease.

c)

The low score causes the mean to increase.

d)

The low score causes the mean to decrease.

22.

Is this a statistical question: How many emails do you send each each day?

a)

Yes

b)

No

23.

What is the first quartile (aka Lower Quartile)?

a)

4

b)

5

c)

6

d)

7

24.

What is the third quartile (aka Upper Quartile)?

a)

4

b)

5

c)

6

d)

7

25.

What is the interquartile range?

a)

3

b)

6

c)

4

d)

5

26.

What is the range?

a)

27

b)

12

c)

25

d)

13 - 40

27.

What percent of the data is between 20 and 32?

a)

50%

b)

25%

c)

75%

d)

100%

28.

What is the range?

a)

10

b)

12

c)

15

d)

2 - 12

29.

What is the upper quartile?

a)

7

b)

6

c)

8

d)

3

30.

What is the greatest value?

a)

58

b)

66

c)

64

d)

60

31.

What is the range of scores on the test?

a)

15

b)

100

c)

6

d)

10

32.

The _______ is a measure of variability that represents the spread in data.

a)

Mean

b)

Median

c)

Range

d)

Product

33.

The measure of ________ is a way of describing how far spread out the data is.

a)

Center

b)

Mean

c)

Median

d)

Variability

34.

The IQR represents the middle ___________ of the data.

a)

25%

b)

50%

c)

75%

d)

100%

35.

The data set below represents the different costs of a game at an electronic store.

$32, $47, $121, $96, $49, $81, $56

What is the MINIMUM price?

a)

$28

b)

$32

c)

$49

d)

$23

36.

The data set below represents the different costs of a camera at an electronic store.

$32, $47, $121, $96, $49, $81, $56

What is the MEDIAN price?

a)

$62

b)

$56

c)

$196

d)

$65

37.

The data set below represents the different costs of a camera at an electronic store.

$32, $47, $121, $96, $49, $81, $56

What is the median of the first half of the data?

a)

$47

b)

$59

c)

$96

d)

$108

38.

The data set below represents the different costs of a camera at an electronic store.

$32, $47, $121, $96, $49, $81, $56

What is the median of the second half of the data?

a)

$47

b)

$59

c)

$96

d)

$108

39.

What is the interquartile range?

a)

3

b)

6

c)

4

d)

5

40.

What is the shape of the distribution?

a)

Non-Symmetrical

b)

Positively Skewed

c)

Symmetrical

41.
In a data display, this is a break, space, or opening between values where no value occurs.
a)
gap
b)
hole
c)
symmetric
d)
peak
42.
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
43.
Describing the shape of a data set that is a mirror image one both sides of the center point.
a)
symmetrical
b)

vibe

c)

clustered

d)
uniform
44.
Where is the gap?
a)
Between 0 and 5
b)
Between 6 and 7 students
c)
Between 8 and 12 
d)
13 students
45.
True or False?  The students scored between 71-100% on the Math test.
a)
True
b)
False
46.
How many students were greater than or equal to 60 inches tall?
a)
21
b)
11
c)
17
d)
6
47.
Which interval shows the greatest number of pets?
a)
15-19
b)
0-4
c)
5-9
d)
10-14
48.
21. How many students are represented by the histogram?  
a)
Cannot be determined
b)
9
c)
31
d)
35
49.
How many people watched more than 25 hours of TV last week?
a)
0
b)
10
c)
38
d)
42
50.
Which interval has 4 students?
a)
56-59
b)
60-63
c)
60-67
d)
48-51
51.
What is the minimum value?
a)
64
b)
58
c)
66
d)
60
52.
What is the maximum value?
a)
58
b)
66
c)
64
d)
60
53.
What value is the lower quartile?
a)
66
b)
58
c)
60
d)
64
54.
What is the median?
a)
62
b)
58
c)
66
d)
60
55.
What is the interquartile range (IQR)?
a)
4
b)
64
c)
60
d)
8
56.
What is the term for the median of the upper half of the data?
a)
Upper Quartile
b)
Lower Quartile
c)
Median
d)
Minimum
57.
What is the median of the data?
a)
200
b)
100
c)
90
d)
140
58.

What is the best measure to describe the data set : 6, 35, 8, 20, 6, 16, 7?

a)

mean

b)

median

c)

mode

59.

Which measure of center best represents this set of data?
12, 13, 11, 16, 31, 14, 10, 15

a)

Mean

b)

median

c)

mode

60.

When data values are close together, they are........together.

a)

clustered

b)

spread

c)

gapped

d)

ranged

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