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प्रश्न
Median of the following numbers: 4, 4, 5, 7, 6, 7, 7, 12, 3 is ______.
पर्याय
4
5
6
7
उत्तर
Median of the following numbers: 4, 4, 5, 7, 6, 7, 7, 12, 3 is 6.
Explanation:
First, we arrange the given numbers in ascending order is 3, 4, 4, 5, 6, 7, 7, 7 and 12.
Here, n = 9
Since, n is odd, so we use the formula for median.
Now, median = `((n + 1)/2)`th observation
= `((9 + 1)/2)`th observation ...[Put n = 9]
= `(10/2)`th observation
= 5th observation
= 6
Hence, median of the given number is 6.
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Find the mean salary of 60 workers of a factory from the following table:-
| Salary (in Rs) | Number of workers |
| 3000 | 16 |
| 4000 | 12 |
| 5000 | 10 |
| 6000 | 8 |
| 7000 | 6 |
| 8000 | 4 |
| 9000 | 3 |
| 10000 | 1 |
| Total | 60 |
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