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प्रश्न
For the given data given below, calculate the mean of its median and mode.
6, 2, 5, 4, 3, 4, 4, 2, 3
उत्तर
Given data in ascending order is 2, 2, 3, 3, 4, 4, 4, 5, 6
Hence, n = 9 .....(Odd)
Median = Value of `((n + 1)/2)`th observation
= Value of `((9 + 1)/2)`th observation
= 5th observation
= 4
Mode = Most frequent observation = 4
Mean is the central value.
∴ Mean = `1/2 [3 xx "Median" - "Mode"]`
= `1/2 [3 xx 4 - 4]`
= `1/2 [12 - 4]`
= `1/2 xx 8`
= 4
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संबंधित प्रश्न
The following table given the weekly of workers in a factory:
| Weekly wages (in Rs) | No.of workers |
| 50-55 | 5 |
| 55-60 | 20 |
| 60-65 | 10 |
| 65-70 | 10 |
| 70-75 | 9 |
| 75-80 | 6 |
| 80-85 | 12 |
| 85-90 | 8 |
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| Monthly income (thousands) | No. of employees |
| 6-7 | 20 |
| 7-8 | 45 |
| 8-9 | 65 |
| 9-10 | 95 |
| 10-11 | 60 |
| 11-12 | 30 |
| 12-13 | 5 |
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