Calculate the range and the standard deviation
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.
For the following population of N= 6 scores: 2, 9, 6, 8, 9, 8
- Calculate the
range and the standard deviation (use either definition for the range.)
Given data set,
2,9,6,8,9,8
rearranging in ascending order, 2,6,8,8,9,9
Minimum value = 2
Maximum value = 9
Range = Maximum value - Minimum value
= 9-2
= 7
Range = 7
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