Based on the data shown below, calculate the correlation coefficient (to three decimal places) x y 4 15.64 5 14.85 6 15.86 7 16.97 8 20.48 9 19.99 10 21.1 11 19.41 12 20.02 13 22.73
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.
| x | y |
|---|---|
| 4 | 15.64 |
| 5 | 14.85 |
| 6 | 15.86 |
| 7 | 16.97 |
| 8 | 20.48 |
| 9 | 19.99 |
| 10 | 21.1 |
| 11 | 19.41 |
| 12 | 20.02 |
| 13 | 22.73 |
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