Concept explainers
a.
To find: Whether mean for class C is greater than or less than the mean for class A.
a.
Answer to Problem 5P
The mean of class C is less than the mean of class A.
Explanation of Solution
Given information:
Result data set from two different classes is given as below.
Calculation:
Given data sets are -
Plot for class C is left shifted while for class A it is symmetrical. Therefore, the mean of class C is less than the mean of class A.
b.
To find: Whether median for class C is greater than or less than the median for class A.
b.
Answer to Problem 5P
The median of class C is less than the median of class A.
Explanation of Solution
Given information:
Same as part
Calculation:
Given data sets are -
Class A median
Class C median
Therefore, the median for class C is less than the median for class A.
c.
To find: How to infer which data set has greater mean by comparing the graph.
c.
Explanation of Solution
Given information:
Same as part
Calculation:
Given data sets are -
Chapter 12 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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