Using the given data to answer the below. Data Set x y 2.2 3.9 3.9 1.5 2.9 3.7 4.6 4.9 the additional data point (10.5, 9.2) Compute the linear correlation coefficient with the additional data point the linear correlation coefficient for the five pieces of data is 0.866 Explain why correlations should always be reported with scatter diagrams. Choose correct answer below. a) the scatter diagram is needed to see if the correlation coefficient is being affected by the presence of outliers. b) the scatter diagram can be used to distinguish between association and causation. c) the scatter diagram is needed to determine if the correlation is positive or negative.
Using the given data to answer the below.
Data Set
x y
2.2 3.9
3.9 1.5
2.9 3.7
4.6 4.9
the additional data point (10.5, 9.2)
Compute the linear
Explain why
a) the
b) the scatter diagram can be used to distinguish between association and causation.
c) the scatter diagram is needed to determine if the correlation is positive or negative.
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