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प्रश्न
Find the mean of: 7, 5, 0, 3, 0, 6, 0, 9, 1 and 4
उत्तर
Mean of 7, 5, 0, 3, 0, 6, 0, 9, 1 and 4
Required mean = `"Sum of data values"/"No. of. data values"`
`= (7 + 5 + 0 + 3 + 0 + 6 + 0 + 9 + 1 + 4)/10`
`= 35/10 = 3.5`
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संबंधित प्रश्न
Calculate the mean of the following distribution using step deviation method.
| Marks | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |
| Number of students |
10 | 9 | 25 | 0 | 16 | 10 |
A boy scored following marks in various class tests during a term; each test being marked out of 20.
15, 17, 16, 7, 10, 12, 14, 16, 19, 12 and 16
What are his mean marks?
The marks obtained by 120 students in a mathematics test is given below:
| Marks | No. of students |
| 0 – 10 | 5 |
| 10 – 20 | 9 |
| 20 – 30 | 16 |
| 30 – 40 | 22 |
| 40 – 50 | 26 |
| 50 – 60 | 18 |
| 60 – 70 | 11 |
| 70 – 80 | 6 |
| 80 – 90 | 4 |
| 90 – 100 | 3 |
Draw an ogive for the given distributions on a graph sheet. Use a suitable scale for your ogive. Use your ogive to estimate:
- the median
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- the number of students who did not pass in the test if the pass percentage was 40.
- the lower quartile.
find the mean for the following frequency distribution:
| C.I | 0-50 | 50-100 | 100-150 | 150-200 | 200-250 | 250-300 |
| Freq | 4 | 8 | 16 | 13 | 6 | 3 |
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60, 70, 90, 95, 50, 65, 70, 80, 85, 95.
Find the median of the weights of tomatoes.
If the mean of 11 , 14 , p , 26 , 10 , 12 , 18 , 6 is 15, find p.
Find the mode of the following frequency distribution:
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| No. of students | 4 | 7 | 13 | 18 | 6 | 2 |
Find the mean of first ten odd natural numbers.
Find the median of the given data: 35, 25, 34, 36, 45, 18, 28
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