This topic contains a solution. Click here to go to the answer

Author Question: For a particular age group of adult females, the distribution of cholesterol readings, in mg/dl, is ... (Read 32 times)

stevenposner

  • Hero Member
  • *****
  • Posts: 608
For a particular age group of adult females, the distribution of cholesterol readings, in mg/dl, is normally distributed with a mean of 180 and a standard deviation of 12. What percentage would have readings less than 156?

Question 2

For a particular age group of adult females, the distribution of cholesterol readings, in mg/dl, is normally distributed with a mean of 180 and a standard deviation of 12. What percentage of this population would have readings exceeding 210?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ladyjames123

  • Sr. Member
  • ****
  • Posts: 346
Answer to Question 1

P(x < 156) = P(z < -2) = 0.5000  0.4772 = 0.0228 or 2.28

Answer to Question 2

P(x > 210) = P(z > 2.5) = 0.5000  0.4938 = 0.0062, or 0.62





 

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

For a complete list of videos, visit our video library