<prompt> What is the probability that confounding factor fall to the right of 95 ?1 in 51 in 101 in 201 in 40  <response>: Ans. is d i.e., l in 40 Similar to above question i values out side the 95 2SD -- 4 5 1 in 20. ii values above right to the 95 2SD -- 2.5 1 in 40 iii values below left to the 95 2SD -- 2.5 1 in 40 