Hey Andi963258741.
Hint: You need to first find the z-score and then look the value up in a table of cumulative probabilities. Recall that the z-score of a value is (X - mu)/sigma.
The extract of a plant native to Taiwan has been tested as a possible treatment for Leukemia. One of the chemical compounds produced from the plant was analyzed for a particular collagen. The collagen amount was found to be normally distributed with a mean of and standard deviation of grams per milliliter.
(a) What is the probability that the amount of collagen is greater than grams per milliliter?
answer:
(b) What is the probability that the amount of collagen is less than grams per milliliter?
answer:
(c) What percentage of compounds formed from the extract of this plant fall within standard deviations of the mean? answer: %