HDL is the "good" cholesterol. The higher a person's HDL level, the lower the person's risk of heart attack and stroke will be. In a study of 1753 women in their twenties, the women's HDL cholesterol levels are approximately normally distributed with mean 55 mg/dl and standard deviation 14.1 mg/dl. Complete parts (a) through (d) below. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. According to a reputable health organization, a woman has low HDL (higher risk) if her HDL reading is less than 50 mg/dl. Find the probability that a woman randomly selected from the 1753 women has low HDL. P(x 60) = (Round to four decimal places as needed.) c. Find the probability that a woman randomly selected from the 1753 women has an HDL reading between 50 and 70 mg/dl. P(50