Based on the data shown below, calculate the correlation coefficient (rounded to three decimal places) x y 3 33.8 4 28.4 5 25.6 6 23.9 7 21.3 8 18.6 9 17.7 10 13.3 11 9.1 12 7.7 13 6.8
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.
Based on the data shown below, calculate the
| x | y |
|---|---|
| 3 | 33.8 |
| 4 | 28.4 |
| 5 | 25.6 |
| 6 | 23.9 |
| 7 | 21.3 |
| 8 | 18.6 |
| 9 | 17.7 |
| 10 | 13.3 |
| 11 | 9.1 |
| 12 | 7.7 |
| 13 | 6.8 |
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