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...

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 79  and standard deviation of 88  grams per mililiter. 1.What is the probability that the amount of collagen is greater than 69  grams per mililiter? 2.What is the probability that the amount of collagen is less than 81  grams per mililiter? 3.What percentage of compounds formed from the extract of this plant fall within 1  standard deviations of the mean?