Concept explainers
(a)
To Compare: Homeroom
(a)
Answer to Problem 5CYP
Homeroom
The only outlier in the data of Homeroom
Explanation of Solution
Given:The Number of magazines sold by each student Homeroom
First we finding the range of Homeroom
Range = Highest number − lowest number
Thus
The range of Homeroom
Finding the range of Homeroom
Range = Highest number − lowest number
Thus
The range of Homeroom
Now
Finding median, upper quartile, lower quartile of Homeroom
Arranging the data in ascending order. After arranging the data we can find the median, upper quartile, lower quartile
Thus
Median
Lower quartile
Upper quartile
Now finding interquartile range
Interquartile range = Upper quartile − Lower quartile
Now, after finding the inter quartile range, multiply it by
Finally subtract
i.e.
It is concluded that there are no outliers in the data of the homeroom
Finding median, upper quartile, lower quartile of Homeroom
Arranging the data in ascending order. After arranging the data we can find the median, upper quartile, lower quartile
Thus
Median
Lower quartile
Upper quartile
Now finding interquartile range
Interquartile range = Upper quartile − Lower quartile
Now, after finding the inter quartile range, multiply it by
Finally subtract
i.e.
It is concluded that the only outlier in the data of Homeroom
Hence, Homeroom
The only outlier in the data of Homeroom
(b)
To Explain:How does the outlier affect the range for the number of magazines sold in that homeroom?
(b)
Answer to Problem 5CYP
When the outlier is included, the range doubled the number of magazines in the homeroom
Explanation of Solution
Given: The Number of magazines sold by each student Homeroom
First we have to calculate the range of Homeroom
Range without outlier
Range with the outlier
It is concluded that when the outlier is included, the range doubled the number of magazines in the homeroom
Chapter 13 Solutions
Pre-Algebra, Student Edition
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