Concept explainers
(a)
To find:The
(a)
Answer to Problem 2.5.1EP
The scatter plot and a line of fit and correlation are discussed.
Explanation of Solution
Given:
The table of data is given.
Calculation:
Plot the graph by plotting the minutes on horizontal axis and cost on vertical axis.
The points are (1, 0.20) and (9, 1.48).
These points fit the data well.
The scatter plot shows the strong
Thus, the scatter plot and a line of fit and correlation are discussed.
(b)
To find:The prediction equation.
(b)
Answer to Problem 2.5.1EP
The prediction equation is
Explanation of Solution
Given:
The table of data is given.
Calculation:
Calculate the slope.
The equation of line is given as,
Substitute the values.
Thus, the prediction equation is
(c)
To find:The missing value.
(c)
Answer to Problem 2.5.1EP
The missing value is 2.44.
Explanation of Solution
Given:
The table of data is given.
Calculation:
Substitute the values.
Thus, the missing value is 2.44.
Chapter EP Solutions
Algebra 2
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