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WGU D582 INTRO TO STATS FOR RESEARCH COMPREHENSIVE EXAM STUDY GUIDE WITH COMPLETE SOLUTIONS

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WGU D582 INTRO TO STATS FOR RESEARCH COMPREHENSIVE EXAM STUDY GUIDE WITH COMPLETE SOLUTIONS

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WGU D582 INTRO TO STATS FOR
RESEARCH COMPREHENSIVE EXAM STUDY
GUIDE WITH COMPLETE SOLUTIONS

●● 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 number


●● 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 n-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

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