In a recentyear, the total scores for a certain standardized test were normallydistributed, 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 485.

The probability that a randomly selected medical student who took the test had a total score that was less than 485 is

nothing

.

(Round to four decimal places asneeded.)