## [answered] 1. A pearson correlation has a value of r=-0.69.what is the

1. A pearson correlation has a value of r=-0.69.what is the coefficient of determination?Round your answer to the second decimal place. please enter 2 digits after the decimal point.

2. ?A researcher is studying the relationship between drinking diet soda and sleepiness. He calculates the Pearson correlation and ascertains a correlation coefficient of r = +0.55. How much of the variability in sleepiness is explained by the amount of diet soda consumed?

? A. 42.25%

? B. 30.25%

????? ??C. 80.25%

????? ??D. 43.25%

3. for the following scores

X Y

1 7

4 2

1 3

1 6

2 0

0 6

2 3

1 5

A sketch a scatter plot and estimate the Pearson correction

B. Complete the following table: SX?? SY?? SXY??? SSX?? SSY?????? SP

C. Estimate of Pearson correlation

D. Compute the Pearson correlation.

4. A set of pairs of scores (and values) produces a regression equation of. Find the predicted value for each of the following scores: 0, 1, 3, ?2.

Question:

1. A pearson correlation has a value of r=-0.69.what is the coefficient of determination?

point.

2 2...

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