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Measures of Center

Total questions: 50

Worksheet time: 2hrs 34mins

Name
Class
Date
1.
What is the mode?
a)
Number that occurs the most
b)
The Average
c)
The difference between the highest and lowest values
d)
The Number in the middle
2.
What is the mean?
a)
The number that occurs the most
b)
The number in the middle
c)
The difference between the highest and lowest values
d)
The Average
3.
What is the median?
a)
The number in the middle
b)
The difference between the highest and lowest values
c)
The number that occurs the most
d)
The average
4.
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
5.
At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10
a)
13
b)
12
c)
11
d)
10
6.
Find the mean of these numbers:
2, 57, 38, 42, 6
a)
29
b)
38
c)
50
d)
145
7.
Use the table to find the mean
a)
105
b)
111
c)
118
d)
130
8.
Find the Median of the data set
a)
77
b)
99
c)
80
d)
78.5
9.
The Table above shows the points scored by the JV basketball team in their first seven games. Calculate the mean, median, mode and range. Which statistical measure makes the team sound the best?
a)
Mean
b)
Median
c)
Mode
d)
Range
10.
Which class has the higher test score median? 
a)
Class #1
b)
Class # 2 
c)
The medians are equal
d)
The median is not shown here. 
11.
Mrs. Rosenblatt's class has an average grade of 87. Later on she realizes she left out Joe's score. His grade was a 65. The new mean will ,....
a)
increase
b)
decrease
c)
stay the same
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.
For which group of data does the mean equal the mode?
a)
4, 5, 5, 8
b)
4, 4, 6, 6
c)
4, 5, 6, 6
d)
4, 5, 5, 6
14.
Which is the correct data set for the dot plot?
a)
1, 2, 3, 4, 5, 6, 7, 8, 9, 
b)
1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 7, 9
c)
1, 2, 3, 4, 5, 7, 9
15.

Calculate the range of the following

2, 5, 8, 3, 13, 5

a)
11
b)
13
c)
5
d)
8
16.

calculate the median for the following set of scores

45, 69, 69, 87, 88, 92, 99, 100

a)
87
b)
55
c)
87.5
d)
99
17.

find the lower quartile of the following set of scores

12, 9, 4, 6, 5, 8, 9, 4, 10, 2

a)
10
b)
4
c)
9
d)
6
18.

Calculate the interquartile range of the following data

17, 18, 18, 19, 20, 21, 21, 23, 25

a)
3
b)
4
c)

5


d)

8


19.
Find the mean.
90, 100, 95, 85, 60, 80
a)
85
b)
84
c)
86
d)
90
20.
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
21.
Find the interquartile range using the following data.
18, 15, 22, 16, 17, 15, 12, 22, 13
a)
34
b)
16
c)
6
d)
10
22.
True or False
To find the IQR (interquartile range) you have to add the Q3 + Q1.
a)
True
b)
False
23.
Order the data and find the Q1
2,3,3,3,4,4,4,5,5,5,5,6,6,6,6,6,7,7,8,8,8,9,9
a)
3
b)
4
c)
5
d)
6
24.
Order the data and find the Inter- Quartile Range (IQR)
2,3,3,3,4,4,4,5,5,5,5,6,6,6,6,6,7,7,8,8,8,9,9
a)
3
b)
4
c)
5
d)
6
25.
How would you describe this distribution?
a)
Left skewed
b)
Uniform
c)
Right Skewed
d)
Symmetrical
26.
What percent of students have a height between 58 inches and 60 inches?
a)
25%
b)
50%
c)
75%
d)
100%
27.
What is the interquartile range (IQR) of the data set?
a)
20
b)
25
c)
5
d)
10
28.
How many cities have temperatures between 70 degrees and 99 degrees?
a)
44
b)
34
c)
26
d)
62
29.

A display that shows the distribution data where the data is represented by an X.

a)

line graph

b)

line plot

c)

histogram

d)

bar graph

e)

treasure map

30.

An empty space or interval in a set of data

a)

peak

b)

symmetric

c)

cluster

d)

gap

31.

Data that are grouped together are called a _______.

a)

gap

b)

peak

c)

mode

d)

cluster

32.

The ____________ of a set of data shows the arrangement of data.

a)

distribution

b)

symmetric

c)

dot plot

d)

gap

33.

A diagram that is constructed using the median, quartiles, and extreme values.

a)

frequency distribution

b)

box plot

c)

line graph

d)

bar graph

34.

The most frequently occuring value, or mode of the data plot.

a)

cluster

b)

distribution

c)

peak

d)

gap

35.

A type of bar graph that displays numerical data that have been organized into equal intervals.

a)

bar graph

b)

line graph

c)

box plot

d)

histogram

36.
What is the term for the median of the lower half of the data?
a)
Lower Quartile
b)
Upper Quartile
c)
Median
d)
Maximum
37.
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.
38.
What is the range of the test scores?
a)
15
b)
100
c)
6
d)
10
39.
What is the MEDIAN of this data?
a)
65
b)
40
c)
915
d)
13
40.
What is the MEAN for this data?
a)
80
b)
1040
c)
13
d)
81
41.
What type of graph is this?
a)
Bar Graph
b)
Histogram
c)
Line Plot
42.
Which interval has 400 employees?
a)
33-43
b)
0-10
c)
77-87
d)
66-76
43.
How many students are between 48 and 51 inches tall?
a)
14
b)
8
c)
2
d)
0
44.
How many students scored between a 86 and a 90?
a)
1
b)
3
c)
6
d)
10
45.
How many people watched between 6 and 10 hours of TV last week?
a)
31
b)
22
c)
15
d)
35
46.
Which interval has the greatest number of employees?
a)
11-21
b)
33-43
c)
77-87
d)
44-54
47.
More people had between __ and __ cups of coffee than any other range.
a)
0-3
b)
8-11
c)
12-15
d)
16-19
48.

_________________________ is a set of information collected about people or things.

a)

frequency

b)

data

c)

statistical question

d)

attribute

49.

What is the unit of measure in the data set?

a)

time

b)

online

c)

hours

d)

12

50.

How many observations were collected in this frequency table?

a)

20

b)

16

c)

10

d)

4

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