AnswersIntegrated Math II FullComparing Measures of Center and Variability

Comparing Measures of Center and Variability Answers

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When should you use the median and interquartile range as your measure of center and measure of variability to compare populations shown on a box plot? Check all that apply.

A
when there are outliers in the data sets
B
when there are no big gaps in the middle of the data sets
C
when the plots representing the data are symmetrical
D
when the plots representing the data are nonsymmetrical
E
when there are no outliers in the data set
3

Which of these inferences about the two debate teams are true? Check all that apply.

A
West Side is more consistent at winning.
B
East Side is more consistent at winning.
C
East Side typically wins more debates per year than West Side.
D
West Side typically wins more debates per year than East Side.
E
These graphs do not contain enough information from which to draw inferences.
4

Blue Terrace:

A
6
B
6.1
C
6.5
D
7
5

Blue Terrace:

A
0.75
B
0.86
C
0.92
D
0.96
6

Compare the two sets of data. Who gets more sleep? Why?

A
Jason, because he gets higher median hours of sleep
B
Jason, because he has less variability in sleep hours
C
Mitch, because he gets higher median hours of sleep
D
Mitch, because his maximum hours of sleep were greater than Jason’s maximum
7

Paradiso Grill:

A
0.75
B
0.92
C
0.96
D
1.1
8

Which restaurant has the most variation in customer ratings?

A
Blue Terrace
B
Paradiso Grill
C
Both restaurants have equal variation.

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