A bag contains 60 marbles of various colors. Shana draws 48 times, each time replacing the marble before drawing again. She gets a total of 8 green marbles.

Which is best prediction of how many green marbles are in the bag?

A.
4

B.
6

C.
8

D.
10
PLEASE HELP THIS IS A TIMED TEST

Question

A bag contains 60 marbles of various colors. Shana draws 48 times, each time replacing the marble before drawing again. She gets a total of 8 green marbles. 

Which is best prediction of how many green marbles are in the bag?
  
 
  


  

  A. 
  4   
    


  

  B. 
  6   
    


  

  C. 
  8   
    


  

  D. 
  10  
PLEASE HELP THIS IS A TIMED TEST

anonymous · Answer

Will give metal to whoever help me and/or gives me the answer..

quinton1011 · Answer

answer is D. 10

tacotime · Answer

I'm thinking because she got a green marble 8 out of 48 times you can use that as a ratio to solve for 60 marbles ie:$$\frac{ 8 }{ 48 } = \frac{ x }{ 60 }$$

quinton1011 · Answer

Every time you draw a marble, you have a 1 in 60 chance of picking any particular marble. If 8 of the 48 times you draw a marble are green, then statistically you draw 1 green marble per 6 draws. 8/48=1/6. Then if 1/6 of the total marbles are green, you can find the total number of green marbles by multiplying this proportion by the total number of marbles. 

green marbles = total marbles * % green marbles
= 60 * 1 / 6 = 10

quinton1011 · Answer

medal if helped please