1.

The number of telephone calls received at an exchange in 245 successive one-minute intervals are shown in the following frequency distribution : Number of calls01234567Frequency1421254351403912 Compute the mean deviation about median.

Answer»

The number of telephone calls received at an exchange in 245 successive one-minute intervals are shown in the following frequency distribution :

Number of calls01234567Frequency1421254351403912

Compute the mean deviation about median.



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