WGU D582 EXAM STUDY GUIDE SOLVED
QUESTIONS UPDATED 2026
◍ Nominal. Answer: Sorts data in to groups or categories, qualitative
◍ Ratio. Answer: Both differences and ratios are meaningful,
quantitative, there is a zero point
◍ Interval. Answer: Difference between values is meaningful and
consistent, quantitative, there is no zero point
◍ discreet variable. Answer: Countable values, whole numbeer
◍ continuous. Answer: Infinite possible values, can be measured
◍ Random sample. Answer: Every member has equal chance of being
selected
◍ stratified sample. Answer: Divides population in to subgroups
based on characteristic, then randomly pulls from each
◍ cluster sample. Answer: Divides population in to clusters based on
geographical or organizational boundaries
, ◍ systematic sample. Answer: Select every K-th individual after
choosing a random starting point.
◍ convenience sample. Answer: non random, chosen from what's
easiest or most convenient
◍ purposive sample. Answer: individuals selected intentionally based
on characteristics
◍ Mean. Answer: average, add all values and divide by number of
values
◍ median. Answer: middle value when arranged in order
◍ mode. Answer: value that appears most frequently
◍ range. Answer: maximum to minimum value
◍ variance. Answer: average difference of each data point from the
mean. indicates spread
◍ standard deviation. Answer: 68 one, 95 two, 99.7 three
◍ interquartile range. Answer: shows the range of the middle half of
the data set
QUESTIONS UPDATED 2026
◍ Nominal. Answer: Sorts data in to groups or categories, qualitative
◍ Ratio. Answer: Both differences and ratios are meaningful,
quantitative, there is a zero point
◍ Interval. Answer: Difference between values is meaningful and
consistent, quantitative, there is no zero point
◍ discreet variable. Answer: Countable values, whole numbeer
◍ continuous. Answer: Infinite possible values, can be measured
◍ Random sample. Answer: Every member has equal chance of being
selected
◍ stratified sample. Answer: Divides population in to subgroups
based on characteristic, then randomly pulls from each
◍ cluster sample. Answer: Divides population in to clusters based on
geographical or organizational boundaries
, ◍ systematic sample. Answer: Select every K-th individual after
choosing a random starting point.
◍ convenience sample. Answer: non random, chosen from what's
easiest or most convenient
◍ purposive sample. Answer: individuals selected intentionally based
on characteristics
◍ Mean. Answer: average, add all values and divide by number of
values
◍ median. Answer: middle value when arranged in order
◍ mode. Answer: value that appears most frequently
◍ range. Answer: maximum to minimum value
◍ variance. Answer: average difference of each data point from the
mean. indicates spread
◍ standard deviation. Answer: 68 one, 95 two, 99.7 three
◍ interquartile range. Answer: shows the range of the middle half of
the data set
