A World Health Organization study of health in various countries reported that in Canada, systolic blood pressure readings have a mean of 121 and a standard deviation of 16. A reading above 140 is considered to be high blood pressurm Complete parts a through d below. a. What is the score for a blood pressure reading of 140? (Round to two decimal places needed.) b. I eystolic blood pressure in Canada has a normal distribution, what proportion of Canadians suffers from high blood pressure? The proportion of Canadians with high blood pressure is (Round to four decimal places as needed) c. What proportion of Canadians has systolic blood pressure in the range from 105 to 1407 The proportion with systolic blood pressure between 105 and 140 s (Round to four decimal places as needed) d. Find the 90th percentle of blood pressure readings The 98th percentile of blood pressure readings is (Round to the nearest whole number as needed)