The mean of a set of five numbers is 4.8. Given that the sixth number is x and the mean of these six numbers is 5.5, what is the value of x?
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mean= sum of all observation/ no .of observations first we have to find the sum of first five observations that is
4.8=x/5 by cross multiplication we get x= 24 that is sum of 5 observation
then to find 6 value
we have to same formula
5.5=24+x/6
33=24+x then x=9
4.8=x/5 by cross multiplication we get x= 24 that is sum of 5 observation
then to find 6 value
we have to same formula
5.5=24+x/6
33=24+x then x=9
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