A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
help!
anonymous
 one year ago
help!

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A bag contains 50 marbles, 10 of which are blue, 8 are red, 20 are green, and 12 are purple. Marcie takes a marble out of the bag, records the color, and returns it to the bag. How many red marbles should she expect after 500 trials? 80 100 120 200

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0probability of choosing a red marble = 8 /50 because the number of marbles in bag = 8 and total number of all marbles = 50

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0so number of marbles expected in 500 trials is dw:1439322127297:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0divide 500 by 50 then multiply the answer by 8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hold on please, i have more @welshfella
Ask your own question
Sign UpFind 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
 Engagement 19 Mad Hatter
 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.