If the median of the following frequency distribution is 46 and the total number of items is 230, find the values of f1 and f2
Class interval Frequency
10-20 12
20-30 30
30-40 f1
40-50 65
50-60 f2
60-70 25
70-80 18
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Class interval | Frequency(f) | Cumulative Frequency(cf) |
10-20 | 12 | 12 |
20-30 | 30 | 42 |
30-40 | f1 | 42+f1 |
40-50 | 65 | 107+f1 |
50-60 | f2 | 107+f1+f2 |
60-70 | 25 | 132+f1+f2 |
70-80 | 18 | 150+f1+f2 |
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