If assumed mean is ‘a’, then mean =

\(a + \frac{\sum f_i d_i}{\sum f_i}\)

\(\frac{a+ \sum f_i d_i}{\sum f_i}\)

\(a- \frac{\sum f_i d_i}{\sum f_i}\)

\(a + \frac{\sum f_i d_i}{\sum f_i}\)

\(a + \frac{\sum f_i}{\sum f_i d_i}\)

In the formula of Mode in the grouped data ‘l’ represents

lower limit of the class with highest frequency

lower limit of the class with lowest frequency

upper boundary of the class with highest frequency

lower boundary of the class with low frequency

lower limit of the median class

upper limit of the median class

lower limit of the median class

upper boundary of the median class

lower boundary of class with highest frequency

\({\frac{upper \, boundary + lower \, boundary}{2}}\)

upper boundary + lower boundary

upper boundary – lower boundary

\({\frac{upper \, boundary + lower \, boundary}{2}}\)

\({\frac{upper \, boundary - lower \, boundary}{2}}\)

\(a + \frac{\sum f_i d_i}{\sum f_i}\)

lower limit of the class with highest frequency

lower limit of the median class

\({\frac{upper \, boundary + lower \, boundary}{2}}\)

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