Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Raje

  • one year ago

To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade on the test?

  • This Question is Open
  1. Raje
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A die has one red face, two blue faces, and three green faces. It is rolled 5 times. Find the chance that the red face appears on one of the rolls and the remaining rolls are green.

  2. AmberK0930
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1.) This probability can be modeled by \[14 nCr 10 (.5)^{10}(.5)^{4}\] which equals roughly 6.11%. 2.) This probability can be modeled by 1/6 * 1/2 * 1/2* 1/2 * 1/2 which equals 1/96 or 1.04% Hope that helps

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

    • Attachments:

Ask your own question

Ask a Question
Find 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
  • 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.