Question

which of the scatterplots to the right show
a) little or no association?
b) a negative association?
c) a linear association?
d) a weak or moderately strong association?
e) a very strong association?

b) which scatterplot(s) show(s) a negative association?
a. 1
b. 3 and 4
c. 1 and 4
d. all of these scatterplots
e. 3
f. none of these scatterplots

Explanation:

A negative association in a scatterplot means as one variable increases, the other decreases. Scatterplot 1: points trend down (negative). Scatterplot 4: points trend down (negative). Scatterplot 2: positive (upward). Scatterplot 3: non - linear, no clear negative. So 1 and 4 show negative association.

Answer:

C. 1 and 4