A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
A BAG CONTAINS 12 DISCS. THERE ARE 8 BLUE AND 4 RED DISCS.A DISC IS PICKED OUT AT RANDOM AND NOT REPLACED. A SECOND DISC IS THEN PICKED OUT AT RANDOM AND NOT REPLACED.1) DRAW A TREE DIAGRAM.2)EXPRESS EACH OF UR ANSWER AS A FRACTION IN ITS LOWEST TERMS ,CALCULATE THE PROBABILITY THAT : a) BOTH DISCS ARE RED b) AT LEAST ONE DISC IS BLUE c) A THIRD DISC IS PICKED OUT AT RANDOM.CALCULATE THE PROBABILITY THAT ALL THREE DISCS ARE RED. ...... GUYS NOTE THAT..I HAVE SOLVED ALL THE PARTS BUT PART (c) IS NOT CLEAR TO ME...SO PLZ...IF ANY ONE TRIES TO SOLVE THIS QUESTION JUST TELL ME THE ANSWER OF (c).:)
 one year ago
A BAG CONTAINS 12 DISCS. THERE ARE 8 BLUE AND 4 RED DISCS.A DISC IS PICKED OUT AT RANDOM AND NOT REPLACED. A SECOND DISC IS THEN PICKED OUT AT RANDOM AND NOT REPLACED.1) DRAW A TREE DIAGRAM.2)EXPRESS EACH OF UR ANSWER AS A FRACTION IN ITS LOWEST TERMS ,CALCULATE THE PROBABILITY THAT : a) BOTH DISCS ARE RED b) AT LEAST ONE DISC IS BLUE c) A THIRD DISC IS PICKED OUT AT RANDOM.CALCULATE THE PROBABILITY THAT ALL THREE DISCS ARE RED. ...... GUYS NOTE THAT..I HAVE SOLVED ALL THE PARTS BUT PART (c) IS NOT CLEAR TO ME...SO PLZ...IF ANY ONE TRIES TO SOLVE THIS QUESTION JUST TELL ME THE ANSWER OF (c).:)

This Question is Closed

HamzaBaig
 one year ago
Best ResponseYou've already chosen the best response.1dw:1358862778742:dw

sauravshakya
 one year ago
Best ResponseYou've already chosen the best response.1Your tree diagram looks corect

sauravshakya
 one year ago
Best ResponseYou've already chosen the best response.1P(RRR) =12/132 * 2/10

HamzaBaig
 one year ago
Best ResponseYou've already chosen the best response.1OK THANKS FRND..I GOT IT

sauravshakya
 one year ago
Best ResponseYou've already chosen the best response.1P(RRR) = 4/12 *3/11 *2/10 =(4*3*2)/(12*11*10) = 1/55
Ask your own question
Ask a QuestionFind 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.