When do creative people get their good ideas? Assume that the survey of 963 inventors gives the following information: Time of Day When Good Ideas Occur Time Number of Inventors 6 A.M. - 12 noon 281 12 noon - 6 P.M. 120 6 P.M. - 12 midnight 320 12 midnight - 6 A.M. 242 4 Assuming that the time interval includes the left limit and all the times up to but not including the right limit, estimate the probability that an inventor has a good idea during the time interval from 6 A.M. to 12 noon. Write your answer as a fraction in simplest form