A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

A bag contains 7 nickels, 4 dimes, & 8 quarters. If you draw 3 coins at random from the bag, without replacement, what is the probability that you will get a nickel, a quarter, and a nickel, in that order?

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

    there are 19 coins total so first to get a nickel 7/19 than there are only 18 coins left so to get a quarter is 8/18 than there is only 17 left but only 6 nickels so that is 6/17 As all the events are independent the total probability is there product so 7*8*6/(19*18*17)

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

    my options are : 22/57, 392/6859, 7/18, 56/969, or 196/2907

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

    7*8*6/19*18*17=7*8/(19*3*17)=56/969

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

    is this your homework?

  5. 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.