Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Elementary Statistics

Calculate the mean from the following table.

Scores Frequencies
0-10 2
10-20 4
20-30 12
30-40 21
40-50 6
50-60 3
60-70 2

1
33.4
2
32.6
3
35.8
4
34.2
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