Mathematics
The heights (in nearest cm) of 63 students of a certain school are given in the following frequency distribution table:
| Height (in cm) | Number of students |
|---|---|
| 150 | 9 |
| 151 | 12 |
| 152 | 10 |
| 153 | 8 |
| 154 | 11 |
| 155 | 7 |
| 156 | 6 |
Find :
(i) Median
(ii) Lower quartile (Q1)
(iii) Upper quartile (Q3)
(iv) Interquartile range from the above data.
Related Questions
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
From the following frequency distribution, find:
(i) Median
(ii) Lower quartile
(iii) Upper quartile
(iv) Semi-interquartile range
Variate Frequency 13 6 15 4 18 11 20 9 22 16 24 12 25 2 From the following frequency distribution find :
(i) Median
(ii) Lower quartile (Q1)
(iii) Upper quartile (Q3)
(iv) Interquartile range
Variate Frequency 26 6 25 4 18 8 16 9 30 5 28 11 20 13 23 4 The following table shows the weights (in gm) of a sample of 100 apples, taken from a large consignment:
Weight (in gm) Number of apples 50 - 60 8 60 - 70 10 70 - 80 12 80 - 90 16 90 - 100 18 100 - 110 14 110 - 120 12 120 - 130 10 (i) Construct the cumulative frequency table
(ii) Draw the cumulative frequency curve on a graph paper and from it, determine the median weight of the apples.