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Q. If dots in a scatter diagram are lie in a haphazard manner, then r= .......................

Q. ----- are the whose values are to be determined from the solution of the LPP

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

Q. If two independent random variables follow binomial distribution, their sum follows..............

Q. The arithmetic mean of bxy and byx is ..........................

Q. A normal distribution requires two parameters, namely the mean and ..............

Q. The term regression was used firstly by .............................

Q. In a binomial distribution, if n =8 and p = 1/3, then variance = ........................

Q. .............................. refers to the chance of happening or not happening of an event.

Q. .............................. is a powerful device developed over the matrix algebra.