The frequency distribution of a variable x is xi : 2 3 1 5 fi : 1 2 3 1 then the mean is
Question
Solution 1
To calculate the mean (also known as the average), you need to multiply each value of the variable (xi) by its frequency (fi), sum up these products, and then divide by the total frequency.
Here's how to do it step by step:
Multiply each xi by its corresponding fi: (21) = 2 (32) = 6
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