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

Question #1

Which do you NOT need to do?

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

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

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

D. Pay attention to lectures

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

Question #2

What lies at the 50th percentile?

A. Mode

B. Standard Deviation

C. Range

D. Mean

E. Median

Question #3

Which is false?

A. 50% are on each side of the median

B. For any range, we can estimate p

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

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. A variation ratio of the median to the range

B. A proportion of variance away from the mean

C. A # of standard deviations away from the mean

D. The mean of the variance deviance

E. An estimate of the size of the ordinal variance

Question #5

Standardized scores…

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

B. Form a normal distribution

C. Are normalized scores

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

E. Are calculated using z scores