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Find the mean of each of the following frequency distribution:
Class interval: | 0-8 | 8-16 | 16-24 | 24-32 | 32-40 |
Frequency: | 5 | 6 | 4 | 3 | 2. |
To do:
We have to find the mean of the given frequency distribution.
Solution:
Let the assumed mean be $A=20$
We know that,
Mean $=A+\frac{\sum{f_id_i}}{\sum{f_i}}$
Therefore,
Mean $=20+(\frac{-72}{20})$
$=20-3.6$
$=16.4$
The mean of the given frequency distribution is $16.4$.
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