Question

Taryn has 15 soccer trophies but she only has room to display 9 ofthem on a shelf. If she chooses them at random, what is the probability that eachof the trophies from the school invitational from the 1st through 9th grades will bechosen?

Answer 1

C_9 = (15!)/(15-9)!(9!) = 5005

number of favorable outcomes/ total number of outcomes= 1/5005

=0.0001998