Q.No.1. a. Describe carefully how Standard deviation; Quartile deviation and Mean devlation of any given distribution are obtained? In what problems, should each be used Answer: Q.No.1. b. How variance Is effected when a constant is subtracted or added to every value of variable? Q.No.1. c. The following are the score made by two Batsmen A & B In a series B 29 84 36 199 19 7 73 6 15 12 A 0 13 48 37 51 4 48 76 12 47 Who Is more consistent player? Who Is better as a run getter? Q.No.1. d. A sampling done without replacement and four members of 150 members club has shown that three prefer smoking in the clubhouse lawn. What is the probability that this will occur in fact only 20% of members prefer no smoking in lawn? Q.No.1. e. How will you explain the following statement? "A Poisson distribution having mean equal to 7.6 and its standard deviation 3.4"