Question

find the mean of the following frequency distributions:-​

Answer 1

Answer:

it's quite simple

if you know RESPECTIVE FORMULAS of finding functions

but I don't usually recapitulate the FORMULAS

so I'll explain by conventional method

THEREFORE , MEAN = (SUM OF ALL OBSERVATIONS / TOTAL OBSERVATIONS)

THEREFORE , TOTAL OBSERVATIONS = TOTAL FREQUENCY = (with respect to the table given in question) 30

THEREFORE , SUM OF ALL OBSERVATIONS = (with respect to the table given) 9100

THEREFORE , MEAN = 9100/30 = 303.33

MEAN = 303.33

hope it helps

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