Here is a bivariate data set. x y -2.6 120.6 30.5 34.9 40.1 85.3 18.2 82.2 14.8 89.6 21.8 69.3 36.3 49.9 49.1 25.7 32.3 56.6 52.2 -8.4 Use technology to find the correlation coefficient and report it accurate to three decimal places.
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.
Here is a bivariate data set.
| x | y |
|---|---|
| -2.6 | 120.6 |
| 30.5 | 34.9 |
| 40.1 | 85.3 |
| 18.2 | 82.2 |
| 14.8 | 89.6 |
| 21.8 | 69.3 |
| 36.3 | 49.9 |
| 49.1 | 25.7 |
| 32.3 | 56.6 |
| 52.2 | -8.4 |
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