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Question

Calculate fiuifi for the given data using step-deviation method.
Class intervalFrequency(fi)Class mark(xi)di=xiaui=dih0100405020021002003915010012003003425000300400303501001400500454502002

A
1188
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0
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C
250
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Solution

The correct option is A 1188
Class intervalFrequency(fi)Class mark(xi)di=xiaui=dihfiui0100405020028010020039150100139200300342500003004003035010013040050045450200290Totalfi=188fiui=1

fiuifi=1188

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