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

Question #1

Which do you NOT need to do?

A. Pay attention to lectures

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

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

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

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

Question #2

What lies at the 50th percentile?

A. Mean

B. Mode

C. Range

D. Median

E. Standard Deviation

Question #3

Which is false?

A. 50% are on each side of the median

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

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

D. 68% are on each side of the mean

E. For any range, we can estimate p

Question #4

A z-score is…

A. The mean of the variance deviance

B. An estimate of the size of the ordinal variance

C. A # of standard deviations away from the mean

D. A proportion of variance away from the mean

E. A variation ratio of the median to the range

Question #5

Standardized scores…

A. Are normalized scores

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

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

D. Form a normal distribution

E. Are calculated using z scores