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How can you use a scatter plot to find an equation of a trend line?

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By finding the line of best fit and using the straight line equation formula.
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How do you draw a trend line on a scatter graph?

A simple method involves cutting a rubber band. Then the rubber band straight line is stretched over the scatter diagram and moved about until you feel that 50 % of your data

How do you find slope for a scatter plot?

it is impossible to find the exact slope of a scatter plot. instead you must find the line of best fit. if you find it with a graphing calculator, it is easy. you go to STAT

How do you find a line of best fit from scatter plot?

The line of best fit is simply the line that shows the general direction of the graph. The trick is to make the line go through as many points on the graph as possible. Some s
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What are scattered plots used for?

To carry out a preliminary examination of the date so as to discover whether or not there is any relationship between the two variables plotted, and to provide an indication o
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What is a scatter plot line graph used for?

Scatter plot line graphs are used: In research to see trendsby Actuaries to predict insurance ratesby economist to predict the economy The general idea is to derive a trend o