A community for students.
Here's the question you clicked on:
 0 viewing
gr12
 3 years ago
The holy trinity girls’ basketball team is to be chosen randomly from fifteen Grade 12 students and ten Grade 11 students trying out for the team. The team will consist of 9 players. Determine the probability, to the nearest thousandth, that exactly three are grade 11 students
gr12
 3 years ago
The holy trinity girls’ basketball team is to be chosen randomly from fifteen Grade 12 students and ten Grade 11 students trying out for the team. The team will consist of 9 players. Determine the probability, to the nearest thousandth, that exactly three are grade 11 students

This Question is Closed

gr12
 3 years ago
Best ResponseYou've already chosen the best response.0can u draw out the work so i cn understnad it better

theabsurd
 3 years ago
Best ResponseYou've already chosen the best response.0G11 = 10, G12 = 15, Team = 25, (10/25) = 2/5 (2/5)(2/5)(2/5) = 8/125 probability of 3 g11 girls

theabsurd
 3 years ago
Best ResponseYou've already chosen the best response.0Grade 11 Students = 10 Grade 12 Students = 15 25 Students total Basketball Team = 9 players (10/25) chance of ONE Grade 11 student making the team thus (10/25)(10/25)(10/25) chance of three grade 11 students making the team

gr12
 3 years ago
Best ResponseYou've already chosen the best response.0okay thankyou. can u help me witha nothr question

mathmate
 3 years ago
Best ResponseYou've already chosen the best response.0I suggest you solve this using combinatorics. Number of ways to make a team of 3 from 10 grade 11 students = C(10,3) Number of ways to make a team of 6 from 15 grade 12 students = C(15,6) Total number of ways to make a team of 9 from 25 students = C(25,9) Therefore probability that there are exactly 3 from grade 11 is: C(10,3)*C(15,6)/C(25,9) = 2184/7429 (about 29.4%).
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.