@Ju1882 28 August 2020

Solution of yesterday's Quiz Quiz:- 1$X1Cent = ? Solution :- Before going to solution, I am asking an analogy question. 1MeterX1Centimeter You will say, so simple 100cm^2 or 0.01m^2 In the same way, 1$X1Cent = 100Cent^2 or 0.01$^2. You may say, I never seen 100Cent^2, Then find variance of 5$, 6$, 8$ and 2$. You may observe, you are calculating a term (5$-7$)^2, (6$-7$)^2, (8$-7$)^2 and (2$-7$)^2, then what should be the of the variance in this case. It is $^2.