- A20
- B11
- C10
- D9
Step-by-Step Solution
Frequency of second class = 25 - 15 = 10 (difference of consecutive more-than values).
Answer: C) 10
More-than cumulative frequencies are 30, 25, 15, 6. What is the frequency of the second class?
Class 10Cumulative Frequency and OgiveStatistics and Probability
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