If the mean of the following distribution using short cut method and step deviation
method
СІ=35 - 40,40-45,45 - 50
50 - 55, 55- 60
f=7,6,9,5,3
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Step-by-step explanation:
f7stiursitsísu5si5s85sitßu5au5ßw8ß6e57w4àsw5e5a5a5td75sß75d75s
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