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That All Information and No Further Information. Could Anyone Help Response Part A To D

Response Questions Part A To D In this exercise you will use the Correlation and Regression applet to make scatterplots with 10 points that have correlation close to 0.7. The lesson here is that many patterns can have the same correlation. Always plot your data before you trust a correlation. (a) Stop after adding the first two points. What is the value of the correlation? (Enter your answer rounded to four decimal places. Why does the correlation have this value? OThe mean of two points always has this value O Two is less than the minimum number of data points needed to calculate correlation. This value is the default correlation. O Because two points determine a line, the correlation always has this value. (b) Create a lower-left to upper-right pattern of 10 points with correlation about r to adjust r after you have 10 points). Make a rough sketch of your scatterplot. 0.7.(You can drag points up or down Choos the scatterplot in which r 07 .

0 (c) Make another scatterplot with 9 points in a vertical stack at the left of the plot. Add 1 point far to the right, and then move it until the correlation is close to 0.7. Make a rough sketch of your scatterplot. Choose the scatterplot in which r 0.7

0 d) Make yet another scatterplot with 10 points in a curved pattern that starts at the lower left, rises to the right, and then falls again at the far right. Adjust the points up or down until you have a quite smooth curve with correlation close to 0.7 Make a rough sketch of this scatterplot. Choose the scatterplot in whichr 0.7

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Answer #1

A.

Because two points determine a line, the correlation always has this value

B.

3rd Plot, this one0 (c) Make another scatterplot with 9 points in a vertical stack at the left of the plot. Add 1 point far to the right, and then move it until the correlation is close to 0.7. Make a rough sketch of your scatterplot. Choose the scatterplot in which r 0.7

C.

3rd Plot, this one

0 d) Make yet another scatterplot with 10 points in a curved pattern that starts at the lower left, rises to the right, and then falls again at the far right. Adjust the points up or down until you have a quite smooth curve with correlation close to 0.7 Make a rough sketch of this scatterplot. Choose the scatterplot in whichr 0.7d.

1st plot

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