A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
help123please.
 one year ago
Joe has 4 red pens, 1 green pen, 2 blue pens, and 3 black pens.
What is the probability he will randomly select a black pen and then,without replacing it, randomly selecti a blue pen?
help123please.
 one year ago
Joe has 4 red pens, 1 green pen, 2 blue pens, and 3 black pens. What is the probability he will randomly select a black pen and then,without replacing it, randomly selecti a blue pen?

This Question is Closed

AriPotta
 one year ago
Best ResponseYou've already chosen the best response.0OH I'M SORRY. I'M NOT GOOD WITH PROBABILITY

RadEn
 one year ago
Best ResponseYou've already chosen the best response.1P(Black) = 3/10 P(Blue) = 2/9 multiply of both

electrokid
 one year ago
Best ResponseYou've already chosen the best response.2event A: selecting "1" black from a total of (4+1+2+3)=10; \[P(A)={3\over10}\] event B: selecting "1" blue from the remainning "9" \[P(B)={2\over9}\] now, the events are mutually independent... \[P(A\cap B)=P(A)\times P(B)={3\over10}\times{2\over9}\]

help123please.
 one year ago
Best ResponseYou've already chosen the best response.0Oh, ok, thanks!

help123please.
 one year ago
Best ResponseYou've already chosen the best response.0IDK who to give BEST ANSWER to. LOL.
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.