UP TGT Mathematics Statistics Test Series - Part 3
In a frequency distribution table, class boundaries are [10-20, 20-30, 30-40, 40-50] with relative frequencies [0.15, 0....
Type: MCQ • Marks: 1
In a frequency distribution table, class boundaries are [10-20, 20-30, 30-40, 40-50] with relative frequencies [0.15, 0.35, 0.30, 0.20]. If N = 200, find the cumulative frequency of class 30-40.
Options
A. 100
B. 2) 130
C. 3) 180
D. 4) 160
Explanation
Cumulative relative frequency up to 30-40 = 0.15 + 0.35 + 0.30 = 0.80. Cumulative frequency = 0.80 * 200 = 160.
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