the mark obtained by the examination of 400marks is given in the following frequency distribution table find the mean of the distr
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Here, this is a question from statistics, where we have to find the mean of the given distribution table.
We have the formula for mean:
The required value for formula of mean can be obtained by following table:
From here we have obtained values of:
Now put these values in the formula:
∵ So the required mean is 306.4.
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