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WorksheetsData Spread and Center
Total questions: 17
Worksheet time: 24mins
Name
Class
Date
1.
a)
136
b)
150
c)
156
d)
153
2.
The number of text messages that Isaac received each day for a week is shown: 47, 49, 54, 50, 48, 47, 55
What is the mean and median
What is the mean and median
a)
Mean=49
Median=54
Median=54
b)
Mean=49
Median=50
Median=50
c)
Mean=50
Median=54
Median=54
d)
Mean=50
Median=49
Median=49
3.
The numbers of runs scored by a softball team in 20 games are given.
3, 4, 8, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 8, 2, 10, 3, 10, 9, 7
What is the Interquartile Range.
3, 4, 8, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 8, 2, 10, 3, 10, 9, 7
What is the Interquartile Range.
a)
IQR = 6
b)
IQR = 10
c)
IQR = 7.5
d)
IQR = 12
4.
The range is the difference between the greatest and the least data values.
a)
True
b)
False
5.
Quartiles are values that divide a data set into four equal parts.
a)
True
b)
False
6.
1- The first quartile (Q 1) is the median of the lower half of the set.
2- The second quartile (Q 2) is the median of the whole set .
3- The third quartile (Q 3) is the median of the upper half of the set.
2- The second quartile (Q 2) is the median of the whole set .
3- The third quartile (Q 3) is the median of the upper half of the set.
a)
All three statements are true.
b)
Only the 1st statement is true.
c)
Only the 2nd and the 3rd statements are true.
d)
Only the 3rd statement is true.
7.
The interquartile range (IQR) of a data set is the difference between the third and first quartiles. It represents the range of the middle half of the data.
a)
True
b)
False
8.
Given the data: 21, 31, 26, 24, 28, 26
This is a 3 part question:
Part-1: What is the mean of the data?
This is a 3 part question:
Part-1: What is the mean of the data?
a)
24
b)
25
c)
26
d)
27
9.
Given the data: 136, 150, 119, 150, 125, 143.
Find the range.
Find the range.
a)
Range = 136 - 125 = 21.
b)
Range = 150 - 125 = 75.
c)
Range = 150 - 125 = 25.
d)
Range = 150 - 119 = 31
10.
Given the data: 136, 150, 119, 150, 125, 143.
Find the interquartile range (IQR)
Find the interquartile range (IQR)
a)
IQR = 150 - 119 = 31
b)
IQR = 150 - 125 = 25.
c)
IQR = 150 - 125 = 75.
d)
IQR = 150 - 119 = 31.
11.
A dot plot is a data representation that uses a number line and Xs, dots, or other symbols to show frequency.
a)
True
b)
False
12.
a)
Mode
b)
Median
c)
Mean
d)
IQR
13.
a)
Kim's scores are more consistent.
b)
Caleb's scores are more consistent.
c)
Both scores have the same consistency!
d)
Not enough information is provided.
14.
The numbers of runs scored by a softball team in 20 games are given.
3, 4, 8, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 8, 2, 10, 3, 10, 9, 7
What is the median of this data.
3, 4, 8, 12, 7, 5, 4, 12, 3, 9, 11, 4, 14, 8, 2, 10, 3, 10, 9, 7
What is the median of this data.
a)
Median = 7.5
b)
Median = 7
c)
Median = 8
d)
Median = 12
15.
Quartiles are values that are divide into quarters, or __________ parts.
a)
25
b)
4
c)
5
d)
Equal
16.
The first step in finding the median is:
a)
cross out until you meet in the middle
b)
find the one that happens the most
c)
list the numbers in order from least to greatest
d)
add all the values up
17.
Mean is when:
a)
you add up the values and divide by the number of values
b)
you find the middle
c)
you see the one that happens the most
d)
you subtract the highest and lowest values
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