In a frequency distribution with total frequency $48$,$\bar{x}=70$,$\Sigma f_{i}=43+f$,and $A=66$. Then,the missing frequency $f=$ .........
- A$27$
- B$23$
- C$7$
- D$5$
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Similar Questions
Weekly income of $600$ families is tabulated below:
Weekly income Number of families $0-1000$ $250$ $1000-2000$ $190$ $2000-3000$ $100$ $3000-4000$ $40$ $4000-5000$ $15$ $5000-6000$ $5$ Total $600$
Compute the median income (in $Rs.$).
| Weekly income | Number of families |
| $0-1000$ | $250$ |
| $1000-2000$ | $190$ |
| $2000-3000$ | $100$ |
| $3000-4000$ | $40$ |
| $4000-5000$ | $15$ |
| $5000-6000$ | $5$ |
| Total | $600$ |
Compute the median income (in $Rs.$).
Medium
View SolutionFind the median of the following frequency distribution:
Class $0-10$ $10-20$ $20-30$ $30-40$ $40-50$ $50-60$ $60-70$ $70-80$ Frequency $2$ $6$ $8$ $16$ $20$ $18$ $16$ $14$
| Class | $0-10$ | $10-20$ | $20-30$ | $30-40$ | $40-50$ | $50-60$ | $60-70$ | $70-80$ |
| Frequency | $2$ | $6$ | $8$ | $16$ | $20$ | $18$ | $16$ | $14$ |
Difficult
View SolutionTo draw the 'less than' type Ogive,........... is represented on the $X$-axis.
Easy
View SolutionIf $M - \bar{x} = 2$ and $Z = 20.5$,then the median $M = \ldots$ (in $.5$)
Medium
View Solution$Z - \bar{x} = \dots \times (M - \bar{x})$
Easy
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