Concept explainers
To find: How lines of best fit and other trend use with scatter plots.

Answer to Problem 19CT
Best fit is a correct graph of the
Explanation of Solution
Given:
Scatter plots and trending line.
Concept used:
A line of best fit is a straight line that best represents the data on a scatter plot. This line may pass through some of the points, none of the points, or all of the points.
A scatter plot pairs values of two quantitative variables in a data set and display them as geometric points inside a cartesian diagram.
Calculation:
Best fit is a correct graph of the scatter plot. It is the graph of the scatter plot.
If draw a line near to the points of scatter plot then it is called trend line. A trend line is used to estimate the
Hence, Best fit is a correct graph of the scatter plot and If draw a line near to the points of scatter plot then it is called trend line.
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