
Concept explainers
a.
To draw a
The scatter plot is,
Given:
The given data is
Concept Used:
Use online graphing calculator to scatter plot of the given data.
Calculation:
The scatter plot of the given data
Conclusion:
The scatter plot is as shown below:
b.
To find the linear regression and to plot the graph of the given data.
The linear regression is
Given:
The given data is
Concept Used:
Use online graphing calculator.
Calculation:
The linear regression is,
The graph of the given data is,
Conclusion:
The linear regression is
c.
To find median-median line equation and to graph the median-median line.
The median-median line equation is
Given:
The given data is
Concept Used:
Use online graphing calculator to find the median-median line equation.
Calculation:
The scatter plot of the given data
Conclusion:
The median-median line graph is :
d.
To find the best fit equation for the given data.
The best fit of the two lines is the line of regression.
Given:
The given data is
Concept Used:
Observe the graphs.
Calculation:
The best fit of the two lines is the line of regression. The given data best fitted to the equation of linear regression.
Conclusion:
The best fit of the two lines is the line of regression.
Chapter 2 Solutions
EBK PRECALCULUS:GRAPHICAL,...-NASTA ED.
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