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Calculate the mean of the following data...

Calculate the mean of the following data

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Since, given data is not continuous, so we subtract 0.5 from the lower limit and add .5 in the upper limit of each class. Now, we find the class mark `x_(i)` of each class and the proceed as follows

Therefore, `bar(x)("mean")=(sumf_(i)x_(i))/(sumf_(i))=(362)/(28)=12.93`
Hence, mean of the given data is 12.93
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