Question

Which scatterplot shows the weakest positive linear association?
On a graph, points are grouped closely together and increase.
On a graph, points are grouped closely together to form a line and increase.
On a graph, points are grouped closely together and decrease.
On a graph, points are grouped closely together to form a line and decrease.

Answer 1

"On a graph, points are grouped closely together and increase."

Explanation: positive association means points increase together; the one that "forms a line" is very strong, while the increasing set that is merely grouped (not on a line) is weaker. Decreasing plots are negative, not positive.