How to calculate correlation coefficient by hand

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ProtutorMawesh. answered · 18/03/2021

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The correlation coefficient can be calculated by hand using the formula:

Step 1: Determine $x * y, x^{2}, a n d y^{2}$

Step 2: Find the sum of $\sum_{i = 1}^{n} y_{i}, \sum_{i = 1}^{n} x_{i}, \sum_{i = 1}^{n} x_{i} y_{i}, \sum_{i = 1}^{n} {x_{i}}^{2}, a n d \sum_{i = 1}^{n} {y_{i}}^{2} .$

Step 3: Using the above formula for r, substitute the values obtained in step 2.

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How to calculate correlation coefficient by hand

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