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G7 Statistics range,stem-leaf, box-plots

Total questions: 46

Worksheet time: 2hrs 56mins

Name
Class
Date
1.
What was the day with the least amount of cars sold? 
a)
Monday
b)
Tuesday
c)
Wednesday
d)
Thursday
2.
How many students had more than 6 candy bars?
a)
5
b)
2
c)
3
d)
1
3.
What is the RANGE of this data?
a)
20
b)
90
c)
70
d)
80
4.

How many children made at least 3 candy necklaces?

a)

2

b)

12

c)

14

d)

0

5.

How many students scored a 100 on the test?

a)

0

b)

2

c)

6

d)

1

6.
How many games did the team play?
a)
15
b)
12
c)
24
d)
14
7.

The stem and leaf plot represents the data set: 32, 38, 40, 44, 44, 46, 49, 53, 55, 58, 62, 65, 68, 70, 72, 81

What number is missing from the stem and leaf plot?

a)

32

b)

44

c)

65

d)

81

8.
What is the mode of the scores?
a)
24
b)
14
c)
34
d)
30
9.

Find the mean.

a)

90.7

b)

90.9

c)

97.4

d)

97.1

10.

Find the median.

a)

95

b)

97.2

c)

96.8

d)

98

11.

What is the range?

a)

97.2

b)

4

c)

3.3

d)

3.2

12.

How many students scored more than 80%?

a)

10

b)

13

c)

7

d)

15

13.

What is wrong with this stem and leaf diagram?

a)

Nothing- it's all correct.

b)

The order.

c)

It's missing a key.

d)

The title.

14.

Which set of data belongs to this stem-and-leaf plot?

a)

8,8,12,17,19,22,23,31,35,40

b)

8,12,17,18,19,22,23,31,35,40

c)

8,12,17,18,19,22,22,23,31,35,40

d)

8,12,17,18,19,22,31,35,40

15.

What percentage of the players had less than 50 digs?

a)

60%

b)

33.3%

c)

40%

d)

6.7%

16.
What two values do the "whiskers" stand for on a box and whisker plot?
a)
Minimum and Maximum
b)
Lower and Upper Quartile
17.

What is the term for the median of the upper half of the data?

a)

Upper Quartile (Q3)

b)

Lower Quartile (Q1)

c)

Median

d)

Minimum

18.
What percentage of the data is between 90 and 140?
a)
25 %
b)
50%
c)
75%
d)
100%
19.
What percent of students have a height between 58 inches and 60 inches?
a)
25%
b)
50%
c)
75%
d)
100%
20.
2. Which of the following best describes the process of finding the interquartile range for a set of data?
a)
Add the biggest and smallest numbers.
b)
Place the numbers in order from least to greatest and find the middle.
c)
Find the difference between the maximum and the minimum.
d)
Subtract Q1 from Q3.
21.
What data value is the upper quartile (Q3)?
a)
64
b)
62
c)
66
d)
58
22.

What is the interquartile range (IQR) of plot A?

a)

6

b)

8

c)

15

d)

28

23.
If 44 values were used for the data, about how many data values are greater than the 1st quartile?
a)
11
b)
22
c)
33
d)
128
24.

This is the test scores for two different classes. Which class has the greater mean?

a)

2009 class

b)

2010 class

c)

neither

d)

Same

25.

This is the test scores for two different classes. WHICH class has more students?

a)

2009 class

b)

2010 class

c)

neither

d)

Same

26.

This is the test scores for two different classes. Which class has a greater mode?

a)

2009 class

b)

2010 class

c)

neither

d)

Same

27.

This is the test scores for two different classes. Which class has a greater median?

a)

2009 class

b)

2010 class

c)

neither

d)

Same

28.

This is the heights (in inches) of the boys and girls in this class. Who has the greater Minimum value?

a)

Mijas :) (Girls)

b)

Mijos :) (Boys)

c)

Neither

d)

Same

29.

The histogram shows the birth weights of 100 new born babies. What percent of babies weighed between 6 and 7 pounds?

a)

15%

b)

45%

c)

30%

d)

25

30.
Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8
a)
3
b)
5
c)
1
d)
2
31.
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
32.
Which dot plot shows more consistency? a or b?
a)
a
b)
b
33.
Which dot plot shows more variability? a or b?
a)
a
b)
b
34.
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
35.
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
36.
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
37.
Find the MAD:
58, 38, 54, 48, 26, 36
a)
43
b)
20
c)
10
d)
12
38.
True or false? :The larger the Mean Absolute Deviation the more consistent the data is.
a)
True
b)
False
39.
Which mean absolute deviation would be more consistent? 4.2 or 8.5?
a)
4.2
b)
8.5
40.

1. For a class assignment, Tyler will conduct a survey to find out what students like to do after school. He asks the first 10 people he sees in the gymnasium before school what they like to do after school. Which statement correctly explains whether Tyler's sample is a random sample?

a)

Tyler’s sample is not random because he only asks 10 people

b)

Tyler’s sample is not random because he asks people in a gymnasium.

c)

Tyler’s sample is random because he asks the first 10 people he sees.

d)

Tyler’s sample is random because he asks each person the same question

41.
Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative?
a)
yes
b)
no
42.

A movie theater considers upgrading to offer luxury seating. The manager randomly surveys​ 1,200 residents who live within 10 miles of the theater. What is the sample in this​ situation?

a)

The​ 1,200 residents surveyed

b)

​1,500 randomly surveyed customers of the movie theater

c)

All of the movie​ theater's customers

d)

All residents who live within 10 miles of the theater

43.
According to a random telephone survey of 200 adults, 75% of all working adults in the U.S. are satisfied with their current job. What is the population in this survey?
a)
200 adults
b)
adults in the U.S.
c)
75% of adults
44.
Zoie completes a report by asking 70 students across campus. She found that 48% of CTMS students do not wash their hands after using the bathroom. What is the sample size?
a)
48
b)
100
c)
70
d)
CTMS students
45.
The entire group studied is called the
a)
sample
b)
population
46.
The part of the population being studied is called the
a)
population
b)
sample
c)
random

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