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Chapter 2 Part 2

Total questions: 50

Worksheet time: 2hrs 9mins

Name
Class
Date
1.
What is the interquartile range?
a)
4
b)
6
c)
2
d)
8
2.
What value is the lower quartile?
a)
66
b)
58
c)
60
d)
64
3.
What percent of students have a height between 58 inches and 60 inches?
a)
25%
b)
50%
c)
75%
d)
100%
4.
What percentage of the data is between 90 and 140?
a)
25 %
b)
50%
c)
75%
d)
100%
5.
What is the term for the median of the upper half of the data?
a)
Upper Quartile
b)
Lower Quartile
c)
Median
d)
Minimum
6.

Determine the IQR for this set of data. 12, 13, 14, 15, 17, 18, 19, 19, 22, 23

a)

14

b)

5

c)

17.5

d)

19

7.
a)

The median test score is 80.

b)

The lower quartile is 65.

c)

The upper quartile is 90.

d)

The IQR is 30.

8.
What is the minimum value?
a)
64
b)
58
c)
66
d)
60
9.
What is the maximum value?
a)
58
b)
66
c)
64
d)
60
10.
What value is the lower quartile?
a)
66
b)
58
c)
60
d)
64
11.
What is the median?
a)
62
b)
58
c)
66
d)
60
12.

What is the interquartile range (IQR)?

a)

20

b)

25

c)

30

d)

50

13.
Which city has a lower IQR?
a)
City A
b)
City B
14.
Which box and whisker plot has the smallest lower quartile (Q1)?
a)
Top plot
b)
Bottom plot
15.
Which plot has a larger interquartile range?
a)
Top plot
b)
Bottom plot
16.
What percent of students have a height between 58 inches and 60 inches?
a)
25%
b)
50%
c)
75%
d)
100%
17.
6. Which city has a higher median?
a)
Millersburg
b)
Arcadia
18.
Which family on average is shorter?
a)
Maggie's 
b)
Lexi's
19.
What is the overall shape of the graph?
a)
Approximately Symmetrical
b)
Skewed left
c)
Skewed right
20.
What is the highest score in the class?
a)
88%
b)
100%
c)
13
d)
98%
21.
How many students received a score of 94%? 
a)
94
b)
4
c)
1
d)
2
22.
How many students received a score in the 80's?
a)
2
b)
10
c)
14
d)
27
23.
How many total students are in the science class?
a)
13
b)
6
c)
27
d)
25
24.
What is the range of the test scores?
a)
15
b)
100
c)
6
d)
10
25.
What is the MODE of this data?
a)
90
b)
85, 90, and 95
c)
85 and 95
d)
None
26.
What is the MEDIAN of this data?
a)
65
b)
40
c)
915
d)
13
27.
What is the MEAN for this data?
a)
80
b)
1040
c)
13
d)
81
28.

how many people voted in this dot plot

a)

4

b)

9

c)

3

d)

not here

29.

This time series plot is an example of:

a)

An increasing trend

b)

Seasonal variation

c)

A decreasing trend

d)

A structural change

30.
There are 200 vegetable plants in a garden.  How many of the vegetable plants are green beans?
a)
16
b)
24
c)
28
d)
32
31.
The team scored 50 points. How many points did Kendrick score?
a)
12 points
b)
20 points
c)
10 points
d)
72 points
32.
According to this circle graph, what is the least popular flavor of Jolly Rancher?
a)
Blue Rasberry
b)
Watermelon
c)
Grape
d)
Apple
33.
What is the total percent of a pie or circle graph?
a)
10%
b)
50%
c)
100%
d)
1000%
34.

Which table represents the data in the graph?

a)
b)
c)
d)
35.
Approximately how many hours a day are spent in school and doing homework?
a)
6 hours
b)
8 hours
c)
2 hours
d)
12 hours
36.

Which of the following is a pareto chart?

a)
b)
c)
d)
37.

In a pareto chart, data has to be in ____.

a)

any order

b)

ascending order

c)

descending order

d)

none of these

38.

If I tell you that you scored at the 55th percentile on your final exam, you would know:

a)

55% of the class scored the same or worse than you did

b)

You earned a 55% on the exam

c)

You failed the exam

d)

45% of the class scored worse than you did

39.

You are told that your height is the 70th percentile of all heights for people your age. Which of the following is a correct interpretation of this information?

a)

Your height is the same as about 70% of all other people your age.

b)

Your height is the same as or higher than about 70% of all other people your age.

c)

Your score height is lower than approximately 70% of all other people your age.

d)

70% of all people your age are taller than you.

40.

Given the data set: 1, 2, 3, 6, 9, 11, 45, 102, calculate the percentile rank for 11.

a)

70th percentile

b)

62.5th percentile

c)

72.5th percentile

d)

75th percentile

41.

Here are the weights (in pounds) of 10 puppies: 4 4 5 7 8 8 8 10 12 13 What is the percentile rank of a 5 pound puppy?

a)

30%

b)

20th percentile

c)

70%

d)

30th percentile

42.

What is the purpose of z-scores?

a)

to describe the exact location of a score within a distribution

b)

to find the mean of the distribution

c)

to describe the shape of the distribution

d)

to find the standard deviation of the distribution

43.

The sign of the z-score indicates whether the location is above(positive) or below(negative) the mean.

a)

True

b)

False

44.

On the Wechsler IQ test, the average IQ is 100 with a standard deviation of 15. Genius IQ would be an IQ above the average range. Which IQ's would be considered genius?

a)

131

b)

110

c)

145

d)

123

45.

On the Wechsler IQ test, the average IQ is 100 with a standard deviation of 15. Genius IQ would be an IQ above the average range. Low incidents intellectual disability would correspond to a z-score less then -3. What would the IQ be less than?

a)

100

b)

-55

c)

70

d)

55

46.

Find the Z-score.

Mean = 21

Standard Deviation: 1.3

x = 22

a)

0.77

b)

5.33

c)

1.07

d)

1.26

47.

Find the Z-score.

Mean = 27

Standard Deviation: 1.4

x = 11

a)

-11.43

b)

7.85

c)

-2.33

d)

4.16

48.

Find the z-score.

Mean = 38

Standard Deviation: 1.2

x = 42

a)

3.33

b)

-3

c)

3.03

d)

-3.33

49.

Find the z-score.

Mean: 16

Standard Deviation: 4

x = 11

a)

-1.25

b)

+1.25

c)

16

d)

21

50.

Find the z-score.

{15, 9, 27, 29, 37, 17, 30}

x = 14

a)

-1.02

b)

-1.2

c)

1.4

d)

2.1