California State University, Northridge » Sociology » Soc 424 - Statistical Techn » Fall 2021

Question #1

Which do you NOT need to do?

A. Check for invalid values under the “Valid” heading in freq tables

B. Declare invalid values as Missing values in Variable View.

C. Worry about, think about, or say anything about missing variables

D. Pay attention to lectures

E. Be aware of the number of missing cases in frequency tables

Question #2

What lies at the 50th percentile?

A. Standard Deviation

B. Median

C. Mean

D. Mode

E. Range

Question #3

Which is false?

A. 50% are on each side of the median

B. 95% of cases fall within *about* 2 standard deviations

C. For any range, we can estimate p

D. 68% are on each side of the mean

E. 100% of valid cases are “under the curve”

Question #4

A z-score is…

A. An estimate of the size of the ordinal variance

B. The mean of the variance deviance

C. A variation ratio of the median to the range

D. A proportion of variance away from the mean

E. A # of standard deviations away from the mean

Question #5

Standardized scores…

A. Form a normal distribution

B. Are calculated using z scores

C. Translate an entire dataset to z scores, one by one

D. Are calculated using z scores, translate an entire dataset to z scores, one by one, form a normal distribution, and are normalized scores

E. Are normalized scores