SCATTERPLOT And CORRELATION
I wish to determine the correlation between the height (in inches) and weight (in pounds) of 21
males. To do this, I measure the height and weight of two 21
old men. The measured values are:
computed from the measurements on these males is:
b. near 0, because the heights and weights of the men are similar.
A statistics student computes the correlation between two variables in her spreadsheet and finds
She concludes there is no relationship between the variables. Is she correct?
b. We do not have enough information to answer the question.
A recent article in an educational research journal reports a correlation of
achievement and overall math aptitude. It also reports a correlation of
achievement and math anxiety.
Which of the following interpretations is the most correct?
a. The correlation of
is just as strong as the correlation of
b. It is impossible to tell which correlation is stronger.
c. The correlation of
indicates a stronger relationship than the correlation of