For a given frequency distribution,$A=325, c=50, \Sigma f_{i} u_{i}=28$ and $\Sigma f_{i}=200$. Then,mean $\bar{x}=\ldots \ldots \ldots . .$
- A$332$
- B$318$
- C$297$
- D$327.8$
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Similar Questions
The mean of the following data is $16.$ Find the missing frequency $f.$
Class $0-4$ $4-8$ $8-12$ $12-16$ $16-20$ $20-24$ $24-28$ $28-32$ $32-36$ Frequency $6$ $8$ $17$ $23$ $16$ $15$ $f$ $4$ $3$
| Class | $0-4$ | $4-8$ | $8-12$ | $12-16$ | $16-20$ | $20-24$ | $24-28$ | $28-32$ | $32-36$ |
| Frequency | $6$ | $8$ | $17$ | $23$ | $16$ | $15$ | $f$ | $4$ | $3$ |
Difficult
View SolutionGiven below is a cumulative frequency distribution showing the marks secured by $50$ students of a class:
Marks Below $20$ Below $40$ Below $60$ Below $80$ Below $100$ Number of students $17$ $22$ $29$ $37$ $50$
Form the frequency distribution table for the data.
| Marks | Below $20$ | Below $40$ | Below $60$ | Below $80$ | Below $100$ |
| Number of students | $17$ | $22$ | $29$ | $37$ | $50$ |
Form the frequency distribution table for the data.
Medium
View SolutionFor a given frequency distribution,assumed mean $A = 25$,$\Sigma f_{i} d_{i} = 120$ and $\Sigma f_{i} = 140$. Then,the mean $\bar{x} = \dots$
Easy
View SolutionCumulative frequency curve is also known as ........
Easy
View SolutionFor the following data,the modal class is .... .
Class $0-10$ $10-20$ $20-30$ $30-40$ $40-50$ Frequency $7$ $16$ $25$ $32$ $20$
| Class | $0-10$ | $10-20$ | $20-30$ | $30-40$ | $40-50$ |
| Frequency | $7$ | $16$ | $25$ | $32$ | $20$ |
Easy
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