Correlation

AP Statistics· difficulty 3/5

A scatterplot shows a clear "U" pattern (parabola opening downward).

x (units) y (units)

The correlation coefficient r is best estimated as:

  • A

    0.50

  • B

    Approximately +1

  • C

    Approximately -1

  • D

    Approximately 0

    check_circle

Explanation

A symmetric nonlinear (parabolic) pattern can have r near zero even though a strong association exists.

Want 10 more like this — adaptive to your weak spots?

Related questions