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

D. Pay attention to lectures

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

Question #2

What lies at the 50th percentile?

A. Mean

B. Median

C. Range

D. Mode

E. Standard Deviation

Question #3

Which is false?

A. For any range, we can estimate p

B. 50% are on each side of the median

C. 68% are on each side of the mean

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

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

Question #4

A z-score is…

A. A # of standard deviations away from the mean

B. A proportion of variance away from the mean

C. An estimate of the size of the ordinal variance

D. A variation ratio of the median to the range

E. The mean of the variance deviance

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

C. Are normalized scores

D. Are calculated using z scores

E. Form a normal distribution