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

Answer 1

hi

Answer 2

can u anwser it

Answer 3

I can try

Answer 4

thx

Answer 5

who ever gets it right gets a medal

Answer 6

help

Answer 7

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