Answer the following questions (Alternatives are to be noted): prove that `-1 le r le 1`.

Answer the following questions : (Alternatives are to be noted): Define MVUE

Answer the following questions (Alternatives are to be noted): What is sample' space?

Answer the following questions (Alternatives are to be noted) : What is percentile rank

Answer the following questions (Alternatives are to be noted) : Prove that abs(r)= sqrt(b_(yx).b_(xy)) where r and b_(xy) , b_(yx) are the correlation and regression coefficients respectively.

Answer the following questions (Alternatives are to be noted): What is power of a test?

Answer the following questions (Alternatives are to be noted): If r be the correlation coefficient between two variables x and y then prove that -1 le r le1 .

Answer the following questions (Alternatives are to be noted): Write a short note on Percentile scaling.

Answer the following questions (Alternatives are to be noted): State the additive model of time series.

Answer the following questions (Alternatives are to be noted) : Explain M.V.U.E.

Answer the following questions (Alternatives are to be noted): What is the value of sqrt(5/2)