Question

Analysis with the Regression Calculator

The table contains data for five students: homework scores, x, and corresponding test scores, y.

A 2-column table with 6 rows. Column 1 is labeled x with entries 65, 72, 75, 88, 92, 96. Column 2 is labeled y with entries 68, 78, 75, 82, 91, 90.

The regression line shows a:
negative trend line with a strong relationship.
negative trend line with a weak relationship.
positive trend line with a strong relationship.
positive trend line with a weak relationship

Answer 1

Positive trend line with a strong relationship.

Reason: the sample correlation r ≈ 0.951 (r^2 ≈ 0.905), which is a strong, positive correlation.