A frequency table for the data on weights (in kilogram) of 202020 students of a school is given below.
\text{class}classstart text, c, l, a, s, s, end text \text{frequency}frequencystart text, f, r, e, q, u, e, n, c, y, end text
30-4030−4030, minus, 40 777
40-5040−5040, minus, 50 999
50-6050−6050, minus, 60 222
60-7060−7060, minus, 70 111
What is the width of each class?
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109238 a answer any questions please let me and mark me Braille list
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10
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