While calculating mean of a grouped frequency distribution, step deviation method was used ( x-a/h=u ). It was found…

CBSE Class 10 Maths PYQ · Statistics · Find Mean, median, mode · 1 Mark · March 2026 · Standard

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301 Mark · March 2026 · Standard

While calculating mean of a grouped frequency distribution, step deviation method was used ($\frac{x-a}{h}=u$). It was found that $\bar{x} = 64$, $h = 5$ and $a = 62.5$. The value of $u$ is

(a)$0.5$
(b)$1.5$
(c)$0.3$
(d)$7.5$

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While calculating mean of a grouped frequency distribution, step deviation method was used ( x-a/h=u ). It was found…

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