Question 1: The summation sign is usually represented by:

A) The Latin uppercase phi

B) The Greek lowercase omega

C) The Latin lowercase t

D) The Greek uppercase sigma.

Question 2: Scores on an elementary psychology achievement test given to advanced psychology graduate students would tend to be:

A) negatively skewed.

B) positively skewed.

C) normally distributed.

D) bimodally distributed

E) leptokurtic.