WorksheetsMR. E Measures of Variation Review
Total questions: 20
Worksheet time: 22mins
Name
Class
Date
1.
What is the mode?
a)
# happening the most
b)
the average
c)
biggest - smallest
d)
the middle #
2.
Find the median of these numbers:
4,2,7,4,3
4,2,7,4,3
a)
2
b)
5
c)
7
d)
4
3.
Find the mean of these numbers:
2, 57, 38, 42, 6
2, 57, 38, 42, 6
a)
29
b)
38
c)
50
d)
145
4.
What is the mean?
a)
# happening the most
b)
the number in the middle
c)
biggest-smallest
d)
the average
5.
A data set can have more than one median?
a)
True
b)
False
6.
Find the median, mode and range:
3, 5, 7, 9, 11, 8, 3
3, 5, 7, 9, 11, 8, 3
a)
median:9 mode:3 range:8
b)
median:6 mode:3 range:7
c)
median:7 mode:3 range:8
7.
If there is an even number of data in the data set how do you find the median?
a)
order the data and find the middle value
b)
order the data add the 2 middle values and divide by 2
8.
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
9.
How do you find the Interquartile Range?
a)
divide the 3rd quartile by the 1st quartile
b)
subtract the biggest number by the smallest number
c)
divide the biggest number by the smallest number
d)
subtract the 3rd quartile by the 1st quartile
10.
How many modes can you have in a data set?
a)
Zero
b)
One
c)
Two
d)
All the above
11.
33, 25, 42, 25, 31, 37, 46, 29, 38
What is the third quartile of the data?
What is the third quartile of the data?
a)
37
b)
38
c)
40
d)
46
12.
33, 25, 42, 25, 31, 37, 46, 29, 38
What is the first quartile of the data?
What is the first quartile of the data?
a)
25
b)
27
c)
29
d)
33
13.
33, 25, 42, 25, 31, 37, 46, 29, 38
What is the interquartile range of the data?
What is the interquartile range of the data?
a)
8
b)
9
c)
13
d)
21
14.
What do you do if there are two numbers in "the middle" when you are finding the median?
a)
Pick your favorite number
b)
Add the two numbers in the middle & then divide by two.
c)
They are both the median
d)
None of the above
15.
The median of the lower half of a data set, denoted Q1. Also called the lower quartile.
a)
second quartile
b)
third quartile
c)
first quartile
d)
interquartile range
16.
The difference between the third and first quartiles in a data set, representing the middle half of the data.
a)
range
b)
interquartile range
c)
standard deviation
d)
mean absolute deviation
17.
A data value that is far removed from the rest of the data values in the set.
a)
outlier
b)
inlier
c)
immalier
d)
sublier
18.
The difference between the greatest and least values in the data set.
a)
range
b)
interquartile range
c)
standard deviation
d)
mean absolute deviation
19.
The median of the upper half of a data set. Also called the upper quartile.
a)
first quartile
b)
second quartile
c)
third quartile
d)
median
20.
What is the value of Q3?
1, 3, 4, 5, 6, 8, 11, 13, 17
1, 3, 4, 5, 6, 8, 11, 13, 17
a)
4
b)
11
c)
3.5
d)
12
100 %
