Question

A bag contains 45 marbles of various colors. Jon draws 60 times, each time replacing the marble before drawing again. He gets a total of 12 blue marbles.

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









A.
5







B.
9







C.
12







D.
15

Answer 1

i will medal and fannnn!!!!

Answer 2

According to his draws (60 draws, 12 are blue), what is the % of blue balls in the bag?

Answer 3

i think the answer is b> am i correct

Answer 4

I think so too.

Answer 5

awesome

Answer 6

This gives a probability of 1/5 to draw a blue ball.

Answer 7

\left(\frac{45}{60}\right)12=9