While calculating the mean of a given data by the assumed-mean method,

1.	While calculating the mean of a given data by the assumed-mean method, the following values were obtained.A = 25, \(\sum{f_id_i}\) = 110, \(\sum{f_i}\) = 50Find the mean.
Answer» According to assumed-mean method, \(\bar{x}\) = A + \(\cfrac{\sum_if_id_i}{\sum_if_i}\) = 25 + \(\frac{110}{50}\) = 25 + 2.2 = 27.2 Thus, mean is 27.2.

While calculating the mean of a given data by the assumed-mean method, the following values were obtained.A = 25, \(\sum{f_id_i}\) = 110, \(\sum{f_i}\) = 50Find the mean.

Answer»

According to assumed-mean method,

\(\bar{x}\) = A + \(\cfrac{\sum_if_id_i}{\sum_if_i}\)

= 25 + \(\frac{110}{50}\)

= 25 + 2.2

= 27.2

Thus, mean is 27.2.

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While calculating the mean of a given data by the assumed-mean method, the following values were obtained.A = 25, \(\sum{f_id_i}\) = 110, \(\sum{f_i}\) = 50Find the mean.

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