A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Suppose you draw two tennis balls from a bag containing seven pink, four white, three yellow, and two striped balls. What is the probabililty of getting yellow and pink balls with replacing?

  • This Question is Closed
  1. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    one yellow and one pink, you mean?

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok hold on a sec

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    k

  5. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    100 out of 256, if the order of the yellow and pink doesn't matter

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    can you write out how you got that?( like the different steps under one another)?

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    well first you need to find the total possibilities. Which is 16x16, because there are 16 total. that is 256. The possibility of getting pink or yellow is 7+3=10. So 10x10=100/256. Also, I forgot, you can simplify. 100/256. Divide by 4. 25/64.

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks:)

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no problem

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok.... so whats the probability of getting a pink one and a striped one without replacing?

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    without replacing, the total possiblities changes. instead of 16x16, its 16x15. 240. pink and striped is 7+2 9 total. but because there is no replacing it is not 9x9, it is 9x8. 72. So 72 over 240. Simplify. Divide by 4. 13/60.

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks! i have a lot more though! can you stay and help me?

  13. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok

  14. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    YAY! thanks so much! ok so still doing this, whats the probability of getting two pink balls with replacing?

  15. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    7x7=49. Remember 256 possibilities for replacing. so 49/256. Can't simplify that.

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    any more?

  17. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    YEAH A LOT!

  18. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.