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Category > Statistics Posted 04 Jun 2017 My Price 6.00

Stretching a scatterplot

Stretching a scatterplot.

Changing the units of measurement can greatly alter the appearance of a scatterplot. Consider the following data:

(a) Draw and axes each extending from 6 to 6. Plot the data on these  axes.

(b) Calculate the values of new variables /10 and 10 , starting from the values of and . Plot against on the same axes using a different plotting symbol. The two plots are very different in appearance.

(c) Find the correlation between and . Then find the correlation between and . How are the two correlations related? Explain why this isn’t surprising.

 

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Status NEW Posted 04 Jun 2017 05:06 AM My Price 6.00

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file 1496555742-879818_1_636320593624307463_scaling-correlations.docx preview (311 words )
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