Aside from the differences in symbols, the only difference between the SS, variance, and standard deviation calculations for populations and samples is found in the computation of the: SS Variance Standard deviation There are no differences between the two sets of calculations 2. For all of the variability calculations we have done (including range, sum of squares, variance, and standard deviation), the values will always fall between ____ and ______. a. -1 (no variability); 1 (a lot of variability) b. 0 (no variability); 1 (a lot of variability) c. -infinity (no variability); infinity (a lot of variability) d. 0 (no variability); infinity (a lot of variability)
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
1. Aside from the differences in symbols, the only difference between the SS, variance, and standard deviation calculations for populations and samples is found in the computation of the:
SS
Variance
Standard deviation
There are no differences between the two sets of calculations
2. For all of the variability calculations we have done (including
a. -1 (no variability); 1 (a lot of variability)
b. 0 (no variability); 1 (a lot of variability)
c. -infinity (no variability); infinity (a lot of variability)
d. 0 (no variability); infinity (a lot of variability)
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