A recent study shows that the annual cost of maintaining a building in Accra averages
200 Cedis with a variance of 260 Cedis. If a tax of 30% is introduced on all items
associated with the maintenance of building i.e. everything is made 30% more expensive.
Calculate the variance of the annual cost of maintaining a building in Accra.
1
Expert's answer
2020-06-04T21:12:56-0400
Let X represents the annual cost of maintaining a building in Accra, then, E(x)=200, V(x)=260,Let Y represents the annual cost of maintaining a building in Accra after adding a tax of 30%,Y=1.3X
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