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

C. Pay attention to lectures

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

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. Mean

D. Mode

E. Standard Deviation

Question #3

Which is false?

A. For any range, we can estimate p

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

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

D. 50% are on each side of the median

E. 68% are on each side of the mean

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 proportion of variance away from the mean

D. A variation ratio of the median to the range

E. A # of standard deviations away from the mean

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. Are normalized scores

C. Form a normal distribution

D. Are calculated using z scores

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