OpenStax, Introductory Business Statistics 2e §13.1 The Correlation Coefficient r · Exercise 4 · Statistics · Regression & correlation
The Correlation Coefficient r · Exercise 4
Suppose that college grade-point average and verbal portion of an IQ test had a correlation of.40. What percentage of the variance do these two have in common?
(a) 20
(b) 16
(c) 40
(d) 80
OpenStax, Introductory Business Statistics 2e · §13.1 The Correlation Coefficient r · Exercise 4
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