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Let M denote the median of the following frequency distribution Class: 0-4, 4-8, 8-12, 12-16, 16-20 Frequency: 3, 9, 10, 8, 6 Then 20M is equal to:
- 52
- 104
- 208
- 416
Correct answer: 208
Solution
To find the median of a frequency distribution, we first calculate the cumulative frequency and identify the median class. The median is then calculated using the formula that incorporates the class boundaries and frequencies, leading to the result that 20M equals 208.
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