Here is a bivariate data set. x y 61 47 90 27 69 44 73 40 86 35 103 17 80 36 Find the correlation coefficient and report it accurate to four decimal places. r =
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 |
|---|---|
| 61 | 47 |
| 90 | 27 |
| 69 | 44 |
| 73 | 40 |
| 86 | 35 |
| 103 | 17 |
| 80 | 36 |
Find the
r =
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