Post a New Question

Math

posted by on .

2. Three members of a 12 person singing group are going to be chosen to sing a song in their coming concert.

A) how many different groups containing 3 people can be chosen from the 12 members of the singing group?

B) what Is the probability that mike and Jo will both be in the selected group?

  • Math - ,

    A) 12 choose 3, calculated as

    12! / (3! * 9!) = 12*11*10 / (3*2)

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question