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
Find the mean of the following data:
Class $200-299$ $300-399$ $400-499$ $500-599$ $600-699$ $700-799$ $800-899$ Frequency $3$ $61$ $118$ $139$ $126$ $151$ $2$
| Class | $200-299$ | $300-399$ | $400-499$ | $500-599$ | $600-699$ | $700-799$ | $800-899$ |
| Frequency | $3$ | $61$ | $118$ | $139$ | $126$ | $151$ | $2$ |
Medium
View SolutionIf $Z=12$ and $M=16,$ then $\bar{x}=$ ............
Medium
View SolutionFor some given data,if $Z + M = 108$ and $Z - M = -6$,then the mean $\bar{x} = \ldots \ldots \ldots$
Easy
View SolutionIn the formula $\bar{x} = A + \frac{\Sigma f_{i} d_{i}}{\Sigma f_{i}}$ for the mean,$d_{i} = \dots$
Easy
View SolutionIf $Z+M=34$ and $M+\bar{x}=40,$ then $M=\ldots \ldots \ldots . . .$
Medium
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