In the step deviation method, \(A = 25\), \(h = 10\), \(\sum f_i u_i = 20\) and \(\sum f_i = 50\). The mean is

A. 29

B. 25.4

C. 45

D. 27

Doubtly AI Asked 24 Oct 2026 AI-verified · Oct 2026 ssc 10th Save WhatsApp Report

1 answer

Best answer

Answer: A. 29

\(\bar{X} = A + \frac{\sum f_i u_i}{\sum f_i} \times h = 25 + \frac{20}{50} \times 10 = 25 + 4 = 29\).

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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