Ages Frequency 42-45 2 46-49 7 50-53 8 54-57 16 58-61 5 62-65 4 66-69 2 identify any possible outliers
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.
|
Ages |
Frequency |
|
42-45 |
2 |
|
46-49 |
7 |
|
50-53 |
8 |
|
54-57 |
16 |
|
58-61 |
5 |
|
62-65 |
4 |
|
66-69 |
2 |
identify any possible outliers
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