In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.3. Answer parts (a)–(d) below. (a) Find the probability that a randomly selected medical student who took the test had a total score that was less than 491.
The probability that a randomly selected medical student who took the test had a total score that was less than 491 is
(Round to four decimal places as needed.)