A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
You have 4 math books, 3 english books, and six science books. If you select books at random what is the probability of picking 3 english books?
anonymous
 3 years ago
You have 4 math books, 3 english books, and six science books. If you select books at random what is the probability of picking 3 english books?

This Question is Open

Ganpat
 3 years ago
Best ResponseYou've already chosen the best response.1how many books u have ??

Ganpat
 3 years ago
Best ResponseYou've already chosen the best response.1@madison712 : lets do it together.. hope u dont mind..

Ganpat
 3 years ago
Best ResponseYou've already chosen the best response.1add all them together.. you will get total number of books..

Ganpat
 3 years ago
Best ResponseYou've already chosen the best response.1you have total of 6+4+3 = 13 books.. now, picking book and it shd be English.. so u have 3 English books.. So the probability would be 13C3...

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0even i think you are right :)

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1probabilities aint greater than 1

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1i think a hypergeometric probability might be more condusive

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1\[\large\frac{\binom{M}{k}\binom{NM}{nk}}{\binom{N}{n}}\]

Ganpat
 3 years ago
Best ResponseYou've already chosen the best response.1oh sorry.. small mistake..

Ganpat
 3 years ago
Best ResponseYou've already chosen the best response.1@amistre64 : ?? what say ?

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1or one way of looking at it might be if we put all 13 books into a box; the probability of picking an E in the first go around is: 3/13 out of the remaining 12 books ; the probability of picking an E in the 2nd go around is: 2/12 out of the remaining 11 books ; the probability of picking an E in the 3rd go around is: 1/11 P(A and B and C) = P(A) * P(B) * P(C)

Ganpat
 3 years ago
Best ResponseYou've already chosen the best response.1hmmm, agree.. i thought, just one book.. thnx !!!
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.