Suppose that X has a normal N(µ, σ2 ) distribution and that Y = X + Z, where Z is independent of X and has a N(γ, τ 2 ) distribution. Find the best predictors of Y given X and of X given Y . Calculate the the expected squared prediction errors of the two best predictors.

jml angle lkj & angle mj = lm

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.