x y 61 -386.7 64.1 -459.9 62.8 97.2 62.9 1485 49.5 0 43.1 -29.1 51.8 201.7 68.5 -1712.3 72.5 -650.9 41.2 -469.8 64.9 -619.2 60.3 -1770.4 55.8 802 70.7 2825.4 166.4 339.4 What is the correlation coefficient with the outlier? rw = What is the correlation coefficient without the outlier? rwo =
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.
The following bivariate data set contains an outlier.
| x | y |
|---|---|
| 61 | -386.7 |
| 64.1 | -459.9 |
| 62.8 | 97.2 |
| 62.9 | 1485 |
| 49.5 | 0 |
| 43.1 | -29.1 |
| 51.8 | 201.7 |
| 68.5 | -1712.3 |
| 72.5 | -650.9 |
| 41.2 | -469.8 |
| 64.9 | -619.2 |
| 60.3 | -1770.4 |
| 55.8 | 802 |
| 70.7 | 2825.4 |
| 166.4 | 339.4 |
What is the
rw =
What is the correlation coefficient without the outlier?
rwo =
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