This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation. 16.2 33.3 15.4 25 32.4 20.5 31.6
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.
Number of samples (n) = 7
| X |
| 16.2 |
| 33.3 |
| 15.4 |
| 25 |
| 32.4 |
| 20.5 |
| 31.6 |
Number of samples (n) = 7
| 16.2 | -8.71 | 75.8641 |
| 33.3 | 8.39 | 70.3921 |
| 15.4 | -9.51 | 90.4401 |
| 25 | 0.09 | 0.0081 |
| 32.4 | 7.49 | 56.1001 |
| 20.5 | -4.41 | 19.4481 |
| 31.6 | 6.69 | 44.7561 |
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