A World Health Organization study the MONICA preject of health i, various countr

Question

A World Health Organization study the MONICA preject of health i, various countries reported that in Canada, systoic blood pressure readings have a mean of 12 considered to be high blood pressure and·standard de een of A redne above id is (a) How many standard deviations away from the mean is a blood pressure reading of 1527 (3 decimal places) (b) Ir systolic blood pressure in Canada is approximately normal, find the proportion of Canadians that suffer from high blood pressure. (3 decimall places) (c) l, systolic blood pressure in Canads is approarnately normal, what·the robabity that a randomy selected Cradan had·ystok to od preure n the range pen 9e in i (3 decimal places)

Explanation / Answer

Solution:-
a) Z = (152 - 120)/20 = 1.60 => Formula : (X - )/

b) P(X > 152) = P(Z > (152 - 120)/20) = P(Z > 1.6) = 1P (Z < 1.6) = 1 0.9452 = 0.0548 = 0.055(rounded)

c) P(96 < X < 152) = P((96 - 120)/20 < X < (152 - 120)/20)
= P(-1.2 < Z < 1.6)
= 0.830

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