SOLUTION: Please help. Even with my math background I cannot figure this one out. Thank you! The list below names the 12 athletes who are trying out for two openings on the girls' volle

Question 128736: Please help. Even with my math background I cannot figure this one out. Thank you!
The list below names the 12 athletes who are trying out for two openings on the girls' volleyball team. Each of the girls on the list is an excellent player, so Coach Netter decided to use a random method for choosing the two girls who will make the team. Heather and Louisa are best friends and would love to be
on the team together. What are the chances that coach will choose both of them.
Volleyball Tryout List
Annie Gloria
Becky Heather
Carla Ingrid
Dolores Juanita
Evette Kelly
Francine Louisa
Thank you again. Please show whatever work you can so I can explain it to my son easier. It is due tomorrow.
Answer by stanbon(48568) (Show Source):
You can put this solution on YOUR website!
Number of pairs with Louisa and Heather in it: one
Number of pairs when there are 12 to choose from: 12C2 = 12*11/1*2 = 66
-----------------------------
Chances they will be the selected pair = 1/66 or 1:66
=============
Cheers,
Stan H.