The mean systolic blood pressure was measured in a sample population of elderly females and came out to be 125 mm Hg with a standard detion of 10. 95 percent of people would have blood pressure above:
(A) 105 mm Hg (B) 110 mm Hg (C) 115 mm Hg (D) 140 mm Hg
(B) Ans: B. 110 mm Hg(Ref: Park 24/e p 886)