The following data gives the distribution of the height of boys.
Height | 160 | 150 | 152 | 161 | 156 | 154 | 155 |
no of boys | 12 | 8 | 4 | 4 | 3 | 3 | 7 |
In which of the distribution is.
161
As we discussed in concept
MEDIAN -
For Grouped discrete frequency distribution :
In case of continuous frequency distribution the class corresponding the cumulative frequency Just greater than is called the median class and the value of the median
l = the lower limit of the median class.
f = the frequency of the median class.
h = the magnitude of the median class.
c = the cumulative frequency of the class preceding the median class
- wherein
where
Height No. of Boys Now arrange in ascending order
160 12 Height No. of boys c.f
150 18 150 18 8
152 4 152 4 12
161 4 154 3 15
156 3 155 7 22
154 3 156 3 25
155 7 160 12 37
161 4 41
— —
41
=> 155
Option 1)
This option is incorrect.
Option 2)
This option is correct.
Option 3)
This option is incorrect.
Option 4)
161
This option is incorrect.