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

Question #1

Which do you NOT need to do?

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

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

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

D. Pay attention to lectures

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

Question #2

What lies at the 50th percentile?

A. Median

B. Range

C. Standard Deviation

D. Mode

E. Mean

Question #3

Which is false?

A. For any range, we can estimate p

B. 50% are on each side of the median

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

D. 68% are on each side of the mean

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

Question #4

A z-score is…

A. A # of standard deviations away from the mean

B. An estimate of the size of the ordinal variance

C. A variation ratio of the median to the range

D. A proportion of variance away from the mean

E. The mean of the variance deviance

Question #5

Standardized scores…

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

B. Are calculated using z scores

C. Are normalized scores

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. Form a normal distribution