Question One
Blood pressure values of a 72 year old patient on blood pressure monitoring chart at Male
Medical Ward of Kissi Government Hospital were recorded and normally distributed with a
mean of 85 and standard deviation of 5.
A. Calculate the standard score corresponding to a score of 88.
B. What percentage of scores fall between the mean and a score of
i) 88?
ii) 80?
C. Calculate the percentile rank for the score of 88.
D. Calculate the proportion of scores which falls between 88 and 95.
E. What score is at the 23rd percentile?