According to the WHO MONICA Project the mean blood pressure for people in China

Question

According to the WHO MONICA Project the mean blood pressure for people in China is 128 mmHg with a standard deviation of 23 mmHg. Assume that blood pressure is normally distributed.

Round the probabilities to four decimal places.

It is possible with rounding for a probability to be 0.0000.

b) Find the probability that a randomly selected person in China has a blood pressure of 88.3 mmHg or more.

   

c) Find the probability that a randomly selected person in China has a blood pressure of 174.9 mmHg or less.

   

d) Find the probability that a randomly selected person in China has a blood pressure between 88.3 and 174.9 mmHg.

   

e) Find the probability that randomly selected person in China has a blood pressure that is at most 70.5 mmHg.

   

f) Is a blood pressure of 70.5 mmHg unusually low for a randomly selected person in China?

  Why or why not?

yes, since the probability of having a value of blood pressure at least that high is less than or equal to 0.05 

yes, since the probability of having a value of blood pressure at the most that value is less than or equal to 0.05 

no, since the probability of having a value of blood pressure at least that high is less than or equal to 0.05 

no, since the probability of having a value of blood pressure at the most that value is less than or equal to 0.05 

yes, since the probability of having a value of blood pressure at least that high is greater than 0.05 yes, since the probability of having a value of blood pressure at the most that value is greater than 0.05 

no, since the probability of having a value of blood pressure at least that high is greater than 0.05 

no, since the probability of having a value of blood pressure at the most that value is greater than 0.05 

g) What blood pressure do 57% of all people in China have less than?

  Round your answer to two decimal places

Answer 1

Here are the step by step solutions for the questions. Hope this helps!