Achievement 96 94 62 91 77 86 71 59 63 GPA 2.7 3.1 1.6 3.2 3.0 3.8 2.6 3.0 2.2 Achievement 84 98 75 72 86 85 71 93 90 GPA 1.7 3.6 2.6 2.9 2.4 3.4 2.8 3.7 3.2 The coordinates of the pairs in the data set are exchanged. For example, (96, 2.7) in the original data set becomes (2.7, 96) in the new data set. The correlation coefficients for the original data and the new data are opposites O recirpocals the same
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.
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