Question

3. The table shows the results of drawing colored marbles from a bag.

What would be expected to happen to the experimental probability of drawing a white marble as the number of draws increases?



A.
The experimental probability will likely decrease.

B.
The experimental probability will likely increase.

C.
The experimental probability will likely stay about the same.

@phi @welshfella @zepdrix

Answer 1

B? :3

Answer 2

@imqwerty :3

Answer 3

I would expect the experimental probability to get closer to the theoretical

Answer 4

to answer the question, I would first find the experimental probability and then the theoretical prob.
can you do that ?

Answer 5

Ummmm, maybe XD

Answer 6

@phi

Answer 7

what to you get for the theoretical ?

do # of white / total #

Answer 8

10 / 15? :3

Answer 9

unfortunately, you have to add up the total number of marbles (the first column)

Answer 10

okay!

Answer 11

40!

Answer 12

yes, so the theoretical is 10/40 or ¼ (1 out of 4 chance)

now do the same for the "experimental column"

# of whites / total # drawn

Answer 13

hmmm.. would that be 10/ 16?

Answer 14

Ohhhhhh, wait is it 15/60?

Answer 15

yes, 15/60
that simplifies to ?

Answer 16

1/4?

Answer 17

yes. (a number is divisible by 3 if the sum of its digits are)
to 15 : 1+5= 6 and 6 is divisible by 3
60: 6+0= 6 ditto
so we do
5/20
if a number ends in 5 or 0 , it's divisible by 5
so
¼

Answer 18

Okay! Thank you!

Answer 19

now you can answer the question
you got ¼ for both,
and you expect the experimental to be about ¼
so what is the answer ?

Answer 20

C? :3

Answer 21

exactly

Answer 22

Thank you!

Answer 23

now you can answer the question
you got ¼ for both,
and you expect the experimental to be about ¼
so what is the answer ?

Answer 24

yes. (a number is divisible by 3 if the sum of its digits are)
to 15 : 1+5= 6 and 6 is divisible by 3
60: 6+0= 6 ditto
so we do
5/20
if a number ends in 5 or 0 , it's divisible by 5
so
¼