Atheme park conducts a study of families that visit the park during a year. the fraction of such families of size m is 8−m28,m=1,2,3,4,5,6, and 7.for a family of size m that visits the park, the number of members of the family that ride the roller coaster follows a discrete uniform distribution on the set {1, , m}.calculate the probability that a family visiting the park has exactly six members, given that exactly five members of the family ride the roller coaster.