WGU C207 NOTES STUDY GUIDE WITH COMPLETE
SOLUTION!!
1.mean: average
2.mode: typical
3.median: Middle number
4.Outlier: A value much greater or much less than the others in a data se
5.variance: how different every data point is from the mean
6.The bigger the variance: the worse you are doing
7.standard deviation: the square root of the
variance The spread of the order sets
8. +/- 1 standard deviation: 68.2%
9. +/- 2 standard deviation: 95.4%
10. +/- 3 standard deviations: 99.7%
11.z-score: the number of standard deviations a particular score is from
the mean "Me minus the mean divided by standard deviation"
"Puts things to scale"
12.T-score: standard score with a mean of 50 and a standard deviation o
10
13.null hypothesis: a statement or idea that can be falsified, or proved
wrong
14.t-test: a statistical test used to evaluate the size and significance of
the differ- ence between two means
15.t statistic: indicates the distance of a sample mean from a population
mean in terms of the estimated standard error
16.Operationalization: the process of assigning a precise method for
measuring a term being examined for use in a particular study
17.inter-quartile range: the range of the middle 50% of the data
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SOLUTION!!
1.mean: average
2.mode: typical
3.median: Middle number
4.Outlier: A value much greater or much less than the others in a data se
5.variance: how different every data point is from the mean
6.The bigger the variance: the worse you are doing
7.standard deviation: the square root of the
variance The spread of the order sets
8. +/- 1 standard deviation: 68.2%
9. +/- 2 standard deviation: 95.4%
10. +/- 3 standard deviations: 99.7%
11.z-score: the number of standard deviations a particular score is from
the mean "Me minus the mean divided by standard deviation"
"Puts things to scale"
12.T-score: standard score with a mean of 50 and a standard deviation o
10
13.null hypothesis: a statement or idea that can be falsified, or proved
wrong
14.t-test: a statistical test used to evaluate the size and significance of
the differ- ence between two means
15.t statistic: indicates the distance of a sample mean from a population
mean in terms of the estimated standard error
16.Operationalization: the process of assigning a precise method for
measuring a term being examined for use in a particular study
17.inter-quartile range: the range of the middle 50% of the data
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