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Unit One: One Variable Data

Total questions: 75

Worksheet time: 4hrs 45mins

Name
Class
Date
1.

Interquartile Range or IQR is a measure of variability and helps determine the spread of the data.

a)

True

b)

False

2.

The total number of data values in this histogram is...

a)

11

b)

7

c)

4

d)

15

e)

25

3.

What is the interquartile range for the Checkers Club?

a)

4

b)

5

c)

10

d)

11

4.
a)

The minimum temperature for Reybold is lower than the minimum temperature for Picktown.

b)

The median for Reybold and Picktown are equal.

c)

The first quartile for Reybold is greater than the first quartile for Picktown.

d)

Picktown has a greater interquartile range than Reybold.

5.

The data set below has an outlier of 42.

2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42

What effect does removing the outlier have on the distribution of the data?

a)

The mean will decrease

b)

The median will decrease

c)

The mean will increase

d)

The median will increase

6.
Find the median of these numbers:
2, 3, 4, 5, 5, 7
a)
4
b)
5
c)
4.5
d)
6
7.
What is the range of the dot plot?
a)
9
b)
5
c)
4
d)
6
8.
Find the Median
a)
98
b)
93
c)
78
d)
85
9.
What is the interquartile range (IQR) of the data set?
a)
20
b)
25
c)
5
d)
10
10.

What is the value of the upper quartile (Q3)?

a)

3

b)

8

c)

10

d)

15

11.
a)
Skewed Left
b)
Skewed Right
c)
Uniform
d)
Symmetric
12.
Which car club has the higher median?
a)
Cruisers
b)
Car Hops
13.

Finding the mean in data is most like finding

a)

The middle number

b)

The average

c)

The number most frequently occurring

d)

The first number you get

14.

Find the average of these three numbers: 3, 2, 4

a)

2.5

b)

3

c)

4

d)

3.5

15.

Use the bar graph to rank the students’ favorite sports from greatest to least.

a)

Soccer, softball, basketball, other

b)

Other, basketball, softball, soccer

c)

Soccer, basketball, softball, other

d)

Other, softball, basketball soccer

16.
The dot plots compare the number of raffle tickets sold by boys and girls during a school fund-raiser. Which plot has an outlier? 
a)
Girls
b)
Boys
c)
Both Plots
d)
Neither
17.
What is the difference between the medians for the two data sets? 
a)
0 tickets
b)
2 tickets
c)
4 tickets
d)
6 tickets
18.
Find the medians.
Science: _________ Math: __________ 
a)
 science: 4.5 h; math: 3 h
b)
 science: 3 h; math: 4.5 h
c)
 science: 5 h; math: 5 h
d)
 science: 3.5 h; math: 4 h
19.
What is the range in gas mileage for cars?
a)
2
b)
3
c)
4
d)
6
20.
Are these dot plots symmetric?
a)
Yes
b)
No
21.
Is the Cars dot plot skewed left or right?
a)
left
b)
right
22.
Which statement correctly describes the shapes of the dot plots for cars and SUVs?
a)
SUVs: symmetrical
Cars: skewed left
b)
Both are skewed left
c)
Both are symmetrical
d)
SUVs: skewed right
Cars: Skewed left
23.

The double dot plots show the average wait times in minutes for two popular rides at an amusement park. Compare the measures of center and variation, which ride typically has a longer wait time?

a)

No inference can be made from the graph.

b)

Topsy Turvy

c)

The wait times are the same for both rides.

d)

Rocket Blast

24.

What is the spread of the data?

a)

2

b)

1

c)

4

d)

12

25.

What is the mode of the data?

a)

2

b)

1

c)

4

d)

12

26.

What is the median of the data?

a)

2

b)

1

c)

3

d)

12

27.

What is the mean of the data? (0's still count as numbers)

a)

2.1333...

b)

32

c)

15

d)

2.46

28.

Kendra earned money by babysitting for 4 months.

In which month did she make the most money?

a)

September

b)

October

c)

November

d)

December

29.

How many students liked basketball?

(a)   students

30.

How many students like soccer and softball?

(a)   students

31.

How many students like soccer and softball?

a)

9

b)

4

c)

13

d)

15

32.

According to this graph, how many people own a dog?

a)

8

b)

11

c)

6

d)

3

33.

How many more eggs were laid on Friday than Wednesday?

a)

84

b)

36

c)

24

d)

60

34.

Based on the graph, what percent of the books checked out was adventure or science fiction?

a)

50%

b)

62.5%

c)

75%

d)

80%

35.

Which two teachers together received the same number of votes that Ms. Lopez received?

a)

Mrs. Gomez and Mrs. Jones

b)

Mr. Lang and Mr. Lawtin

c)

Mrs. Jones and Mr. Lang

d)

Mr. Lawtin and Mrs. Gomez

36.

The bar graph below shows the names and the number of home runs for 6 players who have hit the most home runs in the World Series.


Based on the data in the bar graph, how many home runs did these 6 players hit in the world series?

a)

70

b)

60

c)

74

d)

76

37.

Which day of the week had the most customers?

a)

Sunday

b)

Saturday

c)

Friday

d)

Monday

38.
How many more people studied for 0-30 minutes than people who studied for 121-150 minutes?
a)
3
b)
6
c)
5
d)
4
39.

What is the mode for this data set? Remember the mode is the most common or most frequent data.

a)

3

b)

4

c)

5

d)

6

40.

How many students were surveyed to collect this data?

a)

11

b)

13

c)

15

d)

17

41.
How many cities have temperatures between 70 degrees and 99 degrees?
a)
44
b)
34
c)
26
d)
62
42.
Neal is going to buy an automobile and needs to spends less than $35,000 in order to afford the monthly payment. Looking at the histogram, how many automobiles does Neal have to choose from?
a)
105
b)
35
c)
20
d)
125
43.
Which interval has 400 employees?
a)
33-43
b)
0-10
c)
77-87
d)
66-76
44.
How many employees have a salary less than $22,000?
a)
50
b)
350
c)
0
d)
10
45.
If Raul measured another tree in the orchard, which is most likely the height of the tree?
a)
12 feet
b)
21 feet
c)
3 feet
d)
19 feet
46.
Elliot says almost everyone arrived at the party after 10:00 P.M., but Nancy thinks most people came earlier. When did a majority of the people arrive? 
a)
7:00-7:59 P.M.
b)
8:00–8:59 P.M.
c)
9:00–9:59 P.M.
d)
10:00–10:59 P.M. 
47.
How many students were greater than or equal to 60 inches tall?
a)
21
b)
11
c)
17
d)
6
48.
Is this an example of a histogram?
a)
yes
b)
no
49.
How many people watched less than 11 hours of TV last week?
a)
48
b)
90
c)
20
d)
65
50.

What is the Maximum data item on this stem and leaf plot?

a)

56%

b)

88%

c)

94%

d)

8122348%

51.

What is the Mode of this data?

a)

96

b)

97

c)

68

d)

802

52.

What is the Minimum data item?

a)

0

b)

71

c)

5

d)

23

53.

How many data items are on the plot?

a)

16

b)

21

c)

22

d)

100

54.

How many data items are on this plot?

a)

9

b)

17

c)

26

d)

89

55.

Which data set goes with this stem-and-leaf plot?

a)

41,52,57,58,65,

66,70,75,78,78,

78,80,80,95

b)

41,52,56,58,66,

70,75,78,78,78,

80,80,95,56

c)

41,52,57,58,65,

66,70,75,78,78,

78,78,80,80

d)

52,52,57,58,65,

66,70,75,78,78,

78,80,80,95

56.

How does the median number of miles driven for Driver A compare to the median number of miles driven for Driver B?

a)

The median for Driver A is more than the median for Driver B.

b)

The medians are the same

c)

The median for Driver A is less than the median for Driver B.

57.

What is the range of data?

a)

41

b)

34

c)

56

d)

50

58.

What is the mode of data?

a)

47, 67, 97

b)

41, 43, 63

c)

45, 75

d)

80

59.

What is the mean of data?

a)

53

b)

53.9

c)

50.1

d)

56.6

60.

What is the median of data?

a)

53

b)

54

c)

97

d)

62

61.

Claudia correctly recorded her math grades using both the line plot and stem-and-leaf graph. Both items are using the same data. Which answer shows both the line plot and stem-and-leaf graph representing the same data?

a)
b)
c)
d)
62.

Darius created a line plot to show the heights of several second graders in his brother's class. Choose the stem-and-leaf plot that matches the data on his line plot.

a)
b)
c)
63.
What is the minimum value?
a)
64
b)
58
c)
66
d)
60
64.
What is the median?
a)
62
b)
58
c)
66
d)
60
65.

How do you calculate the IQR (interquartile range) ?

a)

Q2 - Q1

b)

Q1 - Q3

c)

Q3 - Q2

d)

Q3 - Q1

66.

What is the interquartile range of these scores?

a)

50

b)

70

c)

40

d)

30

67.

What is the range of homework assignments for class 2?

(a)  

68.

What is the IQR for class 1?

(a)  

69.

What do points B and D represent on the box plot?

a)

Mean and Mode

b)

Mean and Median

c)

Least and Greatest Value

d)

First and Third Quartiles

70.
What percentage of the data is between 90 and 140?
a)
25 %
b)
50%
c)
75%
d)
100%
71.

What amount of cupcakes makes up the middle 50% of the data?

a)

16-22 cupcakes

b)

12-32 cupcakes

c)

22-28 cupcakes

d)

16-28 cupcakes

72.

What percentage of the data is between 40 and 90?

a)

25 %

b)

50%

c)

75%

d)

100%

73.

What percent of the data is between 30 and 35 on the number line?

a)

25%

b)

50%

c)

75%

d)

100%

74.

What percentage of the data is between 90 and 140?

a)

25 %

b)

50%

c)

75%

d)

100%

75.
What data value is the upper quartile (Q3)?
a)
64
b)
62
c)
66
d)
58

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