A study was conducted to determine the duration of a typical consultation in an urban medical practice.The results showed that the length of a consultation could be closely approximated by a normal distribution with a mean of 12.4 minutes and a variance of 9.75 minutes².

a)Find the probability that a consultation would last less than 9 minutes.(3 decimal places)

b)How many of the individual patients visiting the medicalcentrewill have a consultation time of less than 9 minutes if there are 522 individual patient consultations on a given day?Use your roundedanswer, with 3 decimal places, from part a.(Round your answer to the nearest whole number)