trixie4499 trixie4499
  • 10-03-2024
  • Mathematics
contestada

Find mean of the following data : class 0 15 15 30 30 45 45 60 60 75 75 90 frequency 12 15 11 20 16 6
a) 43.83
b) 48.50
c) 53.17
d) 57.83

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