The cumulative graph tends to form an S-shaped figure when the uncumulated distribution has
A) more scores in the middle than at the ends
B) more scores at the lower end
C) more scores at the higher end
D) an even distribution of scores throughout

Question

Quizplus · Accepted Answer

An S-shaped cumulative graph, also known as a sigmoid curve, typically occurs when the uncumulated distribution is normal or bell-shaped, meaning there are more scores in the middle than at the ends.

The Cumulative Graph Tends to Form an S-Shaped Figure When