Find the mean of the following frequency distribution by step-deviation method.

37.67

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47.37

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38.90

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35.67

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Solution

The correct option is A
37.67

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Q. Find the mean of following frequency distribution using step deviation method.

Find the arithmetic mean of the following frequency distribution using step-deviation method:
$\begin{matrix} Age(in years) & 18 - 24 & 24 - 30 & 30 - 36 & 36 - 42 & 42 - 48 & 48 - 54 Number of workers & 6 & 8 & 12 & 8 & 4 & 2 \end{matrix}$

Find the mean of the following frequency distribution using step-deviation method.
$\begin{matrix} Class & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 Frequency & 7 & 10 & 15 & 8 & 10 \end{matrix}$

Q. Find the mean of the following frequency distribution using steps deviation method.

C.I	0-100	100-200	200-300	30-400	400-500	500-600	600-700
F	10	15	25	25	10	10	5

Find the mean of the following distribution, by step deviation method.

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Find the mean of the following frequency distribution by step-deviation method.

The correct option is A 37.67

The correct option is A
37.67