True or False
___To solve for the variance of ungrouped data,we need to take the square root of x — mean or
[tex] \sqrt{x \: - \frac{}{x} } [/tex]
___The first step in getting the variance of grouped data is to multiply frequency ( f ) and class mark ( X ) of each class interval to get fX.
___To solve for the variance of ungrouped data,we need to take the square root of x — mean or
[tex] \sqrt{x \: - \frac{}{x} } [/tex]
___The first step in getting the variance of grouped data is to multiply frequency ( f ) and class mark ( X ) of each class interval to get fX.
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1.true
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