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Sagot :
Solution:
From the scatter plot, the following coordinates can be derived for the points;
The scatter plot with the points is as shown below on a graph plotter;
From the sketch and plot, the correlation coefficient of the plot with the line parameters is as shown;
From the above,
[tex]r=-0.9871[/tex]The scatter plot shows a strong association where r is close to -1.
The following relation occurs for a scatter plot;
The plot shows a strong association with r close to -1.
Hence, from the plot made and the scatter plot given, it shows the correlation coefficient is close to minus 1.
Hence, the best estimate from the options is;
[tex]r=-0.94[/tex]
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