1.Find the missing frequency f, if the mode of the given data is 154.
Classes
120-130
130-140
140-150
150-160
160-170
170-180
Frequency
2
8
12
f
9
7
plzz give an answer fast....
Classes | 120-130 | 130-140 | 140-150 | 150-160 | 160-170 | 170-180 |
Frequency | 2 | 8 | 12 | f | 9 | 7 |
The mode for a continuos frequency distribution can be calculated using the formula,
Here, l = Lower limit of the modal class
f = Frequency of the modal class
h = Width of the modal class
= Frequency of the class preceding the modal class
= Frequency of the class following the modal class