4. Following are the marks obtained by 20 students in a Mathematics Test:
91, 63, 54, 83, 92, 63, 75, 85, 89, 91, 63, 72, 83, 54, 92, 75, 84, 90, 91, 83
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2
Answer:
what we have to find please write so that I can solve the problem
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Interval f
0-10 4
10-20 7
20-30 5
30-40 10
40-50 5
50-60 8
60-70 5
70-80 8
80-90 5
90-100 3
Total = 60
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