Find the mean, median, and mode from the given frequency distribution. Ages 11-20 21-30 31-40 41-50 51-60 No. of Peoples 3 6 8 4 3
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,
|
Ages |
11-20 |
21-30 |
31-40 |
41-50 |
51-60 |
|
No. of Peoples |
3 |
6 |
8 |
4 |
3 |
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