What is the formula for statistics?
September 10, 2024 | by Bloom Code Studio
Statistics Formula Sheet
The important statistics formulas are listed in the chart below:
| Mean | \(\begin{array}{l}\bar{x}=\frac{\sum x}{n}\end{array} \) | x = Observations given n = Total number of observations |
| Median | If n is odd, then M =\(\begin{array}{l}(\frac{n+1}{2})\end{array} \)\(\begin{array}{l}^{th}\end{array} \)term If n is even, then M =\(\begin{array}{l}\frac{(\frac{n}{2})^{th}term+(\frac{n}{2}+1)^{th}term}{2}\end{array} \) | n = Total number of observations |
| Mode | The value which occurs most frequently | |
| Variance | \(\begin{array}{l}\sigma ^{2}\end{array} \)=\(\begin{array}{l}\frac{\sum (x-\bar{x})^{2}}{n}\end{array} \) | x = Observations given \(\begin{array}{l}\bar{x}\end{array} \)= Mean n = Total number of observations |
| Standard Deviation | \(\begin{array}{l}S = \sigma = \sqrt{\frac{\sum (x-\bar{x})^{2}}{n}}\end{array} \) | x = Observations given \(\begin{array}{l}\bar{x}\end{array} \)= Mean n = Total number of observations |
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