Question

A student pulls out a marble from a bag containing blue, green, and red marbles. He records the color and places it back into the bag. The table below shows the frequency of each color after 100 marbles are pulled out:


Color of Marbles Blue Green Red
Number of Draws 13 29 58


How many green draws can you expect if the marbles are pulled out 1,000 times?
130
290
580
600

Answer 1

@AloneS

Answer 2

@karim728

Answer 3

Hm, how many red marbles?

Answer 4

58

Answer 5

Oh, I see. Thanks. How many total marbles are in the bag?

Answer 6

100

Answer 7

Good. :-) So, what is the probability that he will pull out a green marble?

Answer 8

29/100=3.44

Answer 9

i think...idk

Answer 10

Hm, I agree with 29/100, but how did you get 3.44?

Answer 11

i did 100/29 but 29/100 is 0.29

Answer 12

?

Answer 13

Ah, right! 0.29 is the probability that we will get green. So, what do you think that tells us about the number of green marbles we will likely pull in 1000 draws?

Answer 14

om... sorry idk

Answer 15

It's cool. Multiply the probability by the number of draws.

Answer 16

0.29 x 1000=290

Answer 17

Yep! :-)
If you pull out 100 marbles, you would expect to get 29 green.

Answer 18

YAYY thanks sooo much

Answer 19

So if you pull out 1000, you would expect to get 10x.

Answer 20

You're welcome. :-)