A community for students.
Here's the question you clicked on:
 0 viewing
muscrat123
 one year ago
WILL MEDAL AND FAN
(06.02)A bag contains 30 marbles, 3 of which are blue, 20 are red, 5 are green, and 2 are purple. Emerson takes a marble out of the bag, records the color, and returns it to the bag. How many purple marbles should he expect after 300 trials?
20
30
50
200
muscrat123
 one year ago
WILL MEDAL AND FAN (06.02)A bag contains 30 marbles, 3 of which are blue, 20 are red, 5 are green, and 2 are purple. Emerson takes a marble out of the bag, records the color, and returns it to the bag. How many purple marbles should he expect after 300 trials? 20 30 50 200

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0On any draw, what is the probability of choosing a purple marble?

muscrat123
 one year ago
Best ResponseYou've already chosen the best response.0idk, but i think it is 20

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How many purple marbles are there?

kropot72
 one year ago
Best ResponseYou've already chosen the best response.1The probability of drawing a purple marble is 2/30 on each trial. The expected number of purple marbles after 300 trials is therefore \[\large \frac{2}{30}\times\frac{300}{1}=?\]

muscrat123
 one year ago
Best ResponseYou've already chosen the best response.0i think so because all of the marbles added up = 30, and 30 x 10 = 300
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.