find the mean of the following observations : 499,489,504,505,506,496,497,510,508,503,504,490,510,511,507,499,498,497,492,502,500
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you will get anwer applying above formula
kesarmann:
I didnot get how to if u have a better answer plz suggest
add eveything divide by two you'll get use a calculator
OK thanku
no problem
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499+489+504+505+506+496+510+508+503+504+490+510+511+507+499+498+497+492+502+500/21=256512
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