Find the mean, the median, and the mode of the following scores. (If an answer does not exist, enter DNE.) mean median mode Test Score Frequency 90 1 80 3 70 9 60 5 50 2
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.
Find the
| mean | |
| median | |
| mode |
| Test Score | Frequency | |
| 90 | 1 | |
| 80 | 3 | |
| 70 | 9 | |
| 60 | 5 | |
| 50 | 2 |
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