In the formula x- - A - fi di- fi - the A stands for assumed mean-

X̅ = A + ∑ f_i d_i/∑ f_i In the formula, the A stands for the assumed mean. ...

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Assumed Mean Method of Finding Mean

In the formul...

Question

In the formula $¯ x = A + \frac{\sum f_{i} d_{i}}{\sum f_{i}}$ , the A stands for assumed mean.

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While calculating the mean of a given data by the assumed-mean method,the following values were obtained:

A=25, $\sum f_{i} d_{i} = 110, \sum f_{i} = 50.$

Find the mean.

x = \{A + \frac{\sum f_{i} d_{i}}{\sum f_{i}}\}

\bar{X} = a + \frac{Σ f_{i} d_{i}}{Σ f_{i}}

{d_{i}}^{'^{s}}

a

In the formula $M e a n = a + \frac{\sum f_{i} d_{i}}{\sum f_{i}}$ , the a stands for assumed mean.

In the formula $¯ x = A + \frac{\sum f_{i} d_{i}}{\sum f_{i}}$ , the A stands for assumed mean.

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