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Question
The mean of a discrete frequency distribution xi / fi, i = 1, 2, ......, n is given by
Options
`overlineX = (sum f_ix_i)/(sumf_i)`
\[\frac{1}{n} \sum^n_{i = 1} f_i x_i\]
\[\frac{\sum^n_{i = 1} f_i x_i}{\sum^n_{i = 1} x_i}\]
\[\frac{\sum^n_{i = 1} f_i x_i}{\sum^n_{1 = 1} i}\]
Solution
The mean of discrete frequency distribution is
`overlineX = (sum f_ix_i)/(sumf_i)`
Hence, the correct option is (a).
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