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According to the WHO MONICA Project the mean blood pressure for people of china is 128 mmHg with a standard deviation pf 23mmHg (kuulasmaa, Hense & Tolonen,1998). Assume that blood pressure is normally distributed.
a. state the random variable
b. Find the probability that a person in china has blood pressure of 135mmHg or more
c. Find probability that a person in china has blood pressure of 141 mmHg or less.
d. Find the probability that a person in china has blood pressure between 120-125 mmHg.
e. Is it unusual for a person in china to have a blood pressure of 135 mmHg? why or why not?
f. What blood pressure do 90% of all people in china have less than?
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