For a given frequency distribution,the total frequency is $25$ and $\Sigma f_{i} x_{i} = 120$. Then,the mean is $\ldots$

  • A
    $4.8$
  • B
    $0.48$
  • C
    $2.4$
  • D
    $0.24$

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Similar Questions

For some given data,if $Z = 95$ and $\bar{x} = 98,$ then $M = \ldots \ldots \ldots$

$Z - M = \ldots \ldots \ldots \times (M - \bar{x})$

Calculate the mean of the scores of $20$ students in a mathematics test:
Marks $10-20$ $20-30$ $30-40$ $40-50$ $50-60$
Number of students $2$ $4$ $7$ $6$ $1$

If $Z - M = 4$,then $M - \bar{x} = \dots$

Find the median of the following frequency distribution:
Class $0-5$ $5-10$ $10-15$ $15-20$ $20-25$ $25-30$ $30-35$
Frequency $5$ $15$ $15$ $8$ $4$ $2$ $1$

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