Question

A coin is tossed 50 times and lands with heads facing up 48% of the time.

Which is most likely to happen in 1000 tosses of the coin?

A.
The percent of heads facing up will be exactly 48%.

B.
The percent of heads facing up will be exactly 50%.

C.
The percent of heads facing up will approach 48%.

D.
The percent of heads facing up will approach 50%.

D?

Answer 1

@welshfella

Answer 2

first work out 48% of 50 to get the number of heads in 50 tosses.
Then its a proportion
expected nuber of heads = number of heads * 1000 / 50

Answer 3

Okay, so that would be... Sorry, Im bad at this =.=

Answer 4

48% of 50 = 0.48*50

Answer 5

0.48*50 = 24

Answer 6

right now
multiply this by 1000 then divide by 50 to get expected number of heads in 1000 tosses.

Answer 7

Okay, so 0.075?

Answer 8

OHH NO I MEAN ..

Answer 9

No

OH i hadn't read the choices.

Answer 10

I got 480 :3

Answer 11

XD

Answer 12

it is 180.
But that s only an estimate .
the correct choice is C - approaching 48%

Answer 13

Okay! Thank you!

Answer 14

* 480 war right NOT 180!!!

Answer 15

Relying on the Law of Large Numbers, I would go with this:

D. The percent of heads facing up will approach 50%. @x__hazel__x

Answer 16

What is the 'Law Of Large Numbers'

A principle of probability and statistics which states that as a sample size grows, its mean will get closer and closer to the average of the whole population.

http://www.investopedia.com/terms/l/lawoflargenumbers.asp

Answer 17

Okay! Thank you sooooo much!!!! I already submitted it, and I didnt pass, but thats fine!

Answer 18

Sorry to hear that. There's always the next time!

Answer 19

Yes! Thank you!

Answer 20

What is the answer to this question? I have seen it posted here several times.

Answer 21

Yes, here is the answer to the question! you were right! :3

Answer 22

Thanks for that. It might not help you at this point but I will remember so that others can be helped.

Answer 23

Okay! Again, thanks!