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प्रश्न
Find the mean of: 12, 9, 6,11 and 17
उत्तर
Mean of 12, 9, 6,11 and 17
Required mean = `"Sum of data values"/"No. of. data values"`
`= (12 + 9 + 6 + 11 + 17)/5`
`= 55/5 = 11`
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संबंधित प्रश्न
The distribution given below shows the marks obtained by 25 students in an aptitude test. Find the mean, median and mode of the distribution.
| Marks obtained | 5 | 6 | 7 | 8 | 9 | 10 |
| No. of students | 3 | 9 | 6 | 4 | 2 | 1 |
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| No. of matches | 35 | 36 | 37 | 38 | 39 | 40 | 41 |
| No. of boxes | 6 | 10 | 18 | 25 | 21 | 12 | 8 |
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| 65 – 70 | 10 |
| 70 – 75 | 9 |
| 75 – 80 | 6 |
| 80 – 85 | 12 |
| 85 – 90 | 8 |
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Direct Method
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| 20 – 25 | 4 |
| 25 – 30 | 7 |
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| 0 – 10 | 5 |
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| Frequency | 9 | 12 | 15 | 10 | 14 |
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