- A8
- B3
- C5
- D4
Step-by-Step Solution
There are 4 classes, so 4 class-mark points are plotted (closing would add 2 more at the ends).
Answer: D) 4
A frequency distribution of daily wages (in Rs) in a Surat factory has classes
200-250, 250-300, 300-350, 350-400.
How many class-mark points (excluding the two zero-frequency closing points) will appear on the frequency polygon?
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