For a frequency distribution mean deviation from mean is computed by -

For a frequency distribution mean deviation from mean in computed by: (a) MdotDdot = (sumf)/(sumf|d|) (b) MdotDdot=(sumd)/(sumf) (c) MdotDdot=(sumfd)/(sumf) (d) MdotDdot=(sumf|d|)/(sumf)

For a frequency distribution mean deviation from mean in computed by (a) MdotDdot=(sumf)/(sumf|d|) (b) MdotDdot=(sumd)/(sumf) (c) MdotDdot=(sumfd)/(sumf) (d) MdotDdot=(sumf|d|)/(sumf)

For a frequency distribution mean deviation from mean in computed by MdotDdot=(sumf)/(sumf|d|) (b) MdotDdot=(sumd)/(sumf) (c) MdotDdot=(sumfd)/(sumf) (d) MdotDdot=(sumf|d|)/(sumf)

For a frequency distribution, mean deviation about mean is computed by

For a frequency distribution the mean deviation about mean is computed by

For a frequency distribution, standard deviation is computed by :

For a frequency distribution standard deviation is computed by

For a frequency distribution, standard deviation is computed by applying the formula :

For a frequency distribution, standard deviation is computed by applying the formula