Consider "10" observations x(1),x(2),......

Consider "10" observations `x_(1),x_(2),...,x_(10)` such that `sum_(i=1)^(10)(x_(i)-alpha)=2` and `sum_(i=1)^(10)(x_(i)-beta)^(2)=40`,where "alpha,beta],[" are positive integers.Let the mean and the variance of the observations be `(6)/(5)` and `(84)/(25)` respectively. Then `(beta)/(alpha)` is equal to:

`5/2`

`3/2`

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