For n = 1,000 the computed r between X and Y is r = .45.If n were increased to 4,000 from the same population, the r would probably be
A) approximately .45.
B) increased to some extent.
C) approximately .90.
D) impossible to predict.

Question

Quizplus · Accepted Answer

The correlation coefficient (r) measures the strength and direction of a linear relationship between two variables. It is not affected by the sample size, assuming the samples are from the same population and the relationship between variables remains constant. Increasing the sample size from 1,000 to 4,000 would not change the value of r, assuming the additional data is consistent with the relationship observed in the initial sample.

For N = 1,000 the Computed R Between X and Y