low is to be
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.
10. The data set below is to be sorted into 5 data classes. What is the class width?
| data | data | data | data |
|---|---|---|---|
| 23 | 32 | 36 | 75 |
| 52 | 55 | 36 | 58 |
| 22 | 19 | 54 | 23 |
| 61 | 51 | 61 | 64 |
| 16 | 28 | 56 | 38 |
| 18 | 46 | 70 | 32 |
| 26 | 78 | 66 | 29 |
| 50 | 48 | 78 | 56 |
| Class Width = | |
| whole number |
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