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Q. Probability distribution is also called theoretical distribution.

Q. Mean ± 2 S.D. covers .............. % area of normal curve.

Q. The normal curve is .................................

Q. When the feasible region is such that the value of objective function can extended to infinity, it is called a case of ------------

Q. In a correlation analysis, if r=0, then we may say that, there is ..................... between variables.

Q. Product moment correlation was developed by .......................

Q. A set of events are said to be ...................... , if the occurrence of one of them excludes the possibility of the occurrence of the other.

Q. In correlation analysis, P.E. = ....................0.6745

Q. If two events, A and B are not mutually exclusive, the P(AUB) = ..................

Q. When P(AUB) = P(A) + P(B), then A and B are .............................