For a given frequency distribution,$\Sigma f_{i} u_{i} = -13$,$n = \Sigma f_{i} = 100$,$A = 62.5$ and $c = 15$. Then,mean $\bar{x} = \dots$

  • A
    $61.5$
  • B
    $64.45$
  • C
    $60.55$
  • D
    $61.2$

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Similar Questions

Consider the following distribution:
Marks obtainedNumber of students
More than or equal to $0$$63$
More than or equal to $10$$58$
More than or equal to $20$$55$
More than or equal to $30$$51$
More than or equal to $40$$48$
More than or equal to $50$$42$

The frequency of the class $30-40$ is:

If $3 \bar{x} = 2 M = 60,$ then $Z = \dots$

In a frequency distribution,the modal class is $70-85$ with frequency $25$. The frequencies of the classes succeeding and preceding the modal class are $20$ and $8$ respectively. Then,the values of $f_{0}, f_{1}$ and $f_{2}$ are respectively.

The mean of the following frequency distribution is $18$. Find the missing frequency $f$.
Class $11-13$ $13-15$ $15-17$ $17-19$ $19-21$ $21-23$ $23-25$
Frequency $3$ $6$ $9$ $13$ $f$ $5$ $4$

The two types of Ogives drawn for a frequency distribution intersect at point $(20, 25)$. Then,the median of the data is .......

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