Q158 / 270 · NDA 2010 (Phase 2) · Mathematics
The frequency distribution of life of 90 TV tubes whose median life is 17 months is as follows:

What is the missing frequency y ?

What is the missing frequency y ?
- Correct answerA20
- B16
- C15
- D12
Solution
The correct answer is option (A).
Hence, the correct answer is option: 'A'.