Concept explainers
a.
To write:An equation of line of best fit for given data and to further graph the points and plot the line.
a.
Answer to Problem 17E
Equation of line of best fit is
Explanation of Solution
Given Information: Data values of minutes,
Calculation:
Entering the data and using the linear regression feature in the graphing calculator,
As
thus, equation of line of best fit is
Graph:
b.
To identify:The
b.
Answer to Problem 17E
Data values have strong
Explanation of Solution
Given information:Graphing calculator display from the previous part.
Interpretation:
From the graphing calculator display in the previous part, it can be inferred that
c.
To interpret:The slope and
c.
Answer to Problem 17E
Slope is positive and is 381.
Line of best fit crosses the
Explanation of Solution
Given Information:Graphing calculator display from previous part.
Interpretation:
From the graphing calculator display shown in part
It interprets that number of reports might increase by 381 per minute after the earthquake ended.
Chapter 4 Solutions
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