Adensity graph for all of the possible times from 50 seconds to 200 seconds can be used to find which of the following?
a. the probability of a time from 75 seconds to 250 seconds
b. the probability of a time from 75 seconds to 150 seconds
c. the probability of a time from 25 seconds to 150 seconds
d. the probability of a time from 150 seconds to 250 seconds