Variables

Many variables in medicine follow a normal distribution where there are approximately an equal number of values below the mean as above the mean. Describe two variables that you work with that would probably follow a normal distribution. Also note which of the two variables would be likely to have a larger standard deviation and why.

1st variable: hemoglobin range in surgical patients should be 12.0g/dL-15.5G/dL for women & 13.5G/dL-17.5G/dL for men

2nd variable: INR range for surgery patients 0-1.1 on no anticoagulants & 2.0-3.0 if on anticoagulants

Reference:

Holmes, A., Illowsky, B., & Dean, S. (2017). Introductory business statistics. OpenStax. https://openstax.org/details/books/introductory-business-statistics