Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

xEnOnn

Suppose there is a set of numbers: \(\{1,2,3,4,5\}\). I pick from the set of numbers 3 times. Each pick is independent. So there is replacement. Then, what is the probability of me getting a 1, a 3 and a 5? And, what is the probability of getting a 2, two 4s?

  • one year ago
  • one year ago

  • This Question is Closed
  1. myko
    Best Response
    You've already chosen the best response.
    Medals 0

    1/125 i would say

    • one year ago
  2. xEnOnn
    Best Response
    You've already chosen the best response.
    Medals 0

    This is for the first part or the second part of the question?

    • one year ago
  3. myko
    Best Response
    You've already chosen the best response.
    Medals 0

    same

    • one year ago
  4. myko
    Best Response
    You've already chosen the best response.
    Medals 0

    for bouth

    • one year ago
  5. xEnOnn
    Best Response
    You've already chosen the best response.
    Medals 0

    why would it be the same for the second one? There is a repeated number in there ie, two 4s.

    • one year ago
  6. myko
    Best Response
    You've already chosen the best response.
    Medals 0

    but there is a replacement. So it doesn't mater....

    • one year ago
  7. xEnOnn
    Best Response
    You've already chosen the best response.
    Medals 0

    Actually, I was thinking why wouldn't it be \(\frac{6}{125}\) for the first part, and \(\frac{3}{125}\) for the second part?

    • one year ago
  8. Zarkon
    Best Response
    You've already chosen the best response.
    Medals 1

    you should let people know if the order that you pick then numbers matters.

    • one year ago
  9. xEnOnn
    Best Response
    You've already chosen the best response.
    Medals 0

    @Zarkon I think the orders do matter in this case since it is a combination because I just need to get a 1, a 3, and a 5. Similarly for the other combination of 2,4,4.

    • one year ago
  10. Zarkon
    Best Response
    You've already chosen the best response.
    Medals 1

    if the order matter than myko's answer is correct. If the order does not matter then you are correct. whether the order matters or not depends on what the problem is asking for. to me, it sounds like the order does not matter...though the problem could have been written better

    • one year ago
  11. xEnOnn
    Best Response
    You've already chosen the best response.
    Medals 0

    oh yea you are right that the order does not matter. I said it wrongly in my previous comment. Thanks for the help! :)

    • one year ago
    • Attachments:

See more questions >>>

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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.