The mean systolic blood pressure of people in the U.S. is
124
124​ with a standard deviation of
18
18​. Assume that systolic blood pressure follows a normal distribution. Round your answers to one decimal. Use the 68-95-99.7 Rule to answer the following questions.

a) What percentage of the people in the U.S. have systolic blood pressure between
106
106​ and
124
124?

%
%
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b) What percentage of the people in the U.S. have systolic blood pressure between
88
88​ and
160
160​?

%
%
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c) What percentage of the people in the U.S. have systolic blood pressure between
70
70​ and
124
124​?

%
%
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d) What percentage of the people in the U.S. have systolic blood pressure above
160
160​?

%
%