f# question:

What is the type inferred for the following function? let estimate Ages(familyName, year 1. year 2, year3) SEP let calculateAge yearOfBirth SP let year = System.DateTime.Now.Year's year-yearOfBirthise let estimatedAge 1 = calculate Age year 1.se let estimatedAge2 = calculateAge year 23 let estimatedAge 3 = calculate Age year 3: let average Age = (estimated Age 1 + estimatedAge2 + estimatedAge3)/35P sprintf "Average age for family %s is %d" familyName average Ages val estimate Ages: familyName:string year 1:int *year2:int year3:int -> float valit: familyName:string * year 1:int year2:int*year 3:int-> string val estimate Ages: familyName:string * year 1:int * year2:int year3.int->int val estimate Ages: familyName:string * year 1:int *year2:int *year 3:int -> string val estimate Ages: familyName:string -> year 1:int ->year2:int ->year 3:int-> string