Finished your HSC? Check out our University Discussion, Non-School forums or help out next year's HSC students!
YOU can help the next generation of students in the community! Share your trial papers and notes on our Notes & Resources page

Probability Question. (1 Viewer)

Thread starter RofL
Start date Oct 25, 2009

R

RofL

Member

#1

A class of 22 studients is to be divided into 4 groups consisting of 4,5,6,7 students. In how many ways can this be done? leave answer unsimpiflied

gurmies

Drover

#2

22C7 x 15C6 x 9C5 x 4C4 = 22!/(4! x 5! x 6! x 7!)

R

RofL

Member

#3

gurmies said:
22C7 x 15C6 x 9C5 x 4C4 = 22!/(4! x 5! x 6! x 7!)

do you have to divide by 4!?

You must log in or register to reply here.

Share:

Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Link

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top