38.9k views
20 votes
A bag contains 7 orange marbles and 21 red marbles. If a representative sample contains 3 orange ​marbles, then how many red marbles would you expect it to​ contain?

2 Answers

3 votes
The answer has to be 9
User Sorana
by
4.3k points
9 votes

Answer:

9

Explanation:

User Vinayak Sakhare
by
4.0k points