The mean of $50$ observations is $36$. If two observations $30$ and $42$ are removed,what is the mean of the remaining observations?
- A$48$
- B$36$
- C$38$
- DNone of these
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Similar Questions
Find the median for the following distribution:
Class Frequency $10-20$ $180$ $20-30$ $82$ $30-40$ $34$ $40-50$ $180$ $50-60$ $136$ $60-70$ $23$ $70-80$ $50$
| Class | Frequency |
| $10-20$ | $180$ |
| $20-30$ | $82$ |
| $30-40$ | $34$ |
| $40-50$ | $180$ |
| $50-60$ | $136$ |
| $60-70$ | $23$ |
| $70-80$ | $50$ |
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View SolutionIf the values $1, \frac{1}{2}, \frac{1}{3}, \dots, \frac{1}{n}$ have frequencies $1, 2, 3, \dots, n$ respectively,what is their mean?
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View SolutionThe median of the following frequency distribution is:
$x_i$ $3$ $6$ $10$ $12$ $7$ $15$ $f_i$ $3$ $4$ $2$ $8$ $13$ $10$
| $x_i$ | $3$ | $6$ | $10$ | $12$ | $7$ | $15$ |
| $f_i$ | $3$ | $4$ | $2$ | $8$ | $13$ | $10$ |
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