Consider the following frequency distribution:
Class | 0-5 | 6-11 | 12-17 | 18-23 | 24-29 |
Frequency | 13 | 10 | 15 | 8 | 11 |
The upper limit of the median class is
(A) 17 (B) 17.5 (C) 18 (D) 18.5
Frequency distribution: It tells how frequencies are distributed over values in a frequency distribution. However mostly we use frequency distribution to summarize categorical variables.
Class in not continuous. So we have to make 1t continuous first.
Class | Frequency | Cumulative Frequency |
0-5.5 | 13 | 13 |
5.5-11.5 | 10 | (13+10=23) |
11.5-17.5 | 15 | (23+15=38) |
17.5-23.5 | 8 | (38+8=46) |
23.5-29.5 | 11 | (46+11=57) |
N = 57 |
Here the median class is 15.5 – 17.5
upper limit of median class is 17.5