The scores of the 5 randomly selected HUMSS students are given below: 26 45 31 34 44 Complete the table and compute for the sample mean, sample variance and sample standard deviation
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.
The scores of the 5 randomly selected HUMSS students are given below:
| 26 | 45 | 31 | 34 | 44 |
Complete the table and compute for the sample mean, sample variance and sample standard deviation
| Studentt's no. | Scores(x) | x-x⎯⎯ | (x-x⎯⎯)2 |
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| n= | ∑x | ∑(x-x⎯⎯)2= |
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