A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

gabbyalicorn

  • one year ago

Cards with the numbers 1 through 50 are placed in a box and thoroughly shuffled. What is the probability of randomly selecting a card with a number less than 10 or a multiple of 12?

  • This Question is Closed
  1. gabbyalicorn
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    https://www.dropbox.com/s/nxwx970tcijgm46/Screenshot%202015-06-16%2014.24.35.png?dl=0

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

    @Skylar0001

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

    @Haseeb96

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

    @mathstudent55

  5. MeowLover17
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I wish i could help you but i really didnt pay attention in class when i was learning probability sorry :(

  6. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You are picking a card out of 50. Now you need to find out how many cards are the desirable outcome.

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

    12?

  8. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    How many cards are less than 10?

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

    2?

  10. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    1,2,3,4,5,6,7,8,9 Less than 10: 9 cards

  11. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Aren't all numbers 1 through 9 less than 10? That means there are 9 cards with numbers less than 10.

  12. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Now we need to see how many cards are multiples of 12. Which numbers from 1 to 50 are multiples of 12?

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

    um 2 6 3 4

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

    and 12

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

    oh multiples

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

    24, 36, and 48 am i right @mathstudent55

  17. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Also, 12 itself.

  18. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    12 is a multiple of itself, so the multiples of 12 from 1 to 50 are 12, 24, 36, and 48

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

    That makes sense.

  20. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Now you see you have a total of 9 + 4 = 13 cards that are you desired outcome. The probability of an event happening is the number of desired outcomes divided by the total number of possible outcomes. You have 13 desired outcomes, and a total of 50 outcomes. What is the probability?

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

    13/50 ? C

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

    Right, because you can't simplify it anymore.

  23. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Correct. p(choosing a number less than 50 or choosing a multiple of 12) = 13/50

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

    Thank You!!! ^u^

  25. 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.