California State University, Northridge » Sociology » Soc 424/L - Statistical Techniques in Social Research » Fall 2020

Question #1

If your current examination mean is 97.2 and you receive a 99 on the next examination, what effect will this have?

A. Your mean will decrease.

B. Your mean will increase.

C. Your mean is unchanged.

D. More information is needed to determine.

Question #2

Which measure of central tendency is also known as the midpoint for a set of scores?

A. the average

B. the median

C. the mode

D. the mean

Question #3

What is the formula for computing the mean?

A. ΣN + y

B. ΣX / n

C. ΣX + n

D. ΣY / X