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Problem: According to the WHO MONICA Project the mean blood pressure for people in chins is 128 mmHg, with a standard deviation of 23 mmHg (kuulasmaa, hense& Tolonen, 1998). Assume tat blood pressure is normally distributed.
a. State the random variable
b. Find the probability that a person in china has blood pressure of 135 mmHg or more
c. Find the probability that a person on china has blood pressure of 141 mmHg or less.
d. Find the probability that a person in china has blood pressure between 120 and 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 of 90% of all people in china have less than.
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