Question

ch 4 look at the following scatterplot. choose which description best fits the plot.

direction: positive; form: linear; strength: weak
direction: positive; form: non - linear; strength: weak
direction: negative; form: linear; strength: strong
no relationship
direction: positive; form: non - linear; strength: strong

Explanation:

Step1: Analyze the direction

As the batting average (x - axis) increases, the strike - outs (y - axis) also tend to increase. So the direction is positive.

Step2: Analyze the form

If it were linear, the points would be more closely clustered around an imaginary straight line. But the pattern of the points does not suggest a straight - line (linear) relationship. So the form is non - linear.

Step3: Analyze the strength

The points are quite spread out. A strong relationship would have points more closely grouped together. So the strength is weak.

Answer:

Direction: positive; form: non - linear; strength: weak