Mathematics
50 persons were examined through X-ray and observations were noted as under:
| Diameter of heart (in mm) | Number of patients |
|---|---|
| 120 | 5 |
| 121 | 8 |
| 122 | 12 |
| 123 | 9 |
| 124 | 6 |
| 125 | 10 |
Find :
(i) The mean diameter of heart,
(ii) The median diameter of heart.
Related Questions
Calculate the median of the following frequency distribution:
Weight (in nearest kg) Number of students 45 8 46 5 48 6 50 9 52 7 54 4 55 2 Find the median of the following frequency distribution:
Variate Frequency 17 5 20 9 15 3 22 4 30 10 25 6 The marks scored by 15 students in a class test are:
14, 20, 8, 17, 25, 27, 20, 16, 25, 0, 5, 19, 17, 30, 6
Find :
(i) Median
(ii) Lower quartile (Q1)
(iii) Upper quartile (Q3)
(iv) Interquartile range
(v) Semi-interquartile range
Find :
(i) Median
(ii) Lower quartile (Q1)
(iii) Upper quartile (Q3)
(iv) Interquartile range
(v) Semi-interquartile range for the following series :
5, 23, 9, 16, 0, 14, 19, 8, 2, 26, 13, 18