#### susumandrai

##### New member

- Joined
- Feb 7, 2012

- Messages
- 47

Please tell me a method. I remember seeing a formula once, but unfortunately i have forgotten

- Thread starter susumandrai
- Start date

- Joined
- Feb 7, 2012

- Messages
- 47

Please tell me a method. I remember seeing a formula once, but unfortunately i have forgotten

- Joined
- Feb 7, 2012

- Messages
- 47

I mean one set of 50 is tossed and recorded and the other is just written down by thinking in your head.If you tossed the coins, then your set of tosses is real.

What's the question?

- Joined
- Jan 29, 2005

- Messages
- 7,829

What aI mean one set of 50 is tossed and recorded and the other is just written down by thinking in your head.

susumandri,

how would you tell if one set is fake or real?

Please tell me a method. I remember seeing a formula once,

but unfortunately i have forgotten

if you really had a serious question regarding this idea, then I would have expected

you to have formulated it such as this:

"Given two sets of 50 coin tosses, one done experimentally and the other 50 chosen

off the top of your head, which set(s) of coin tosses would be indicative of a fair coin?"

If a set of 50 coin tosses (actual or conjured up) would deviate "too much" **

from an average of 25 heads and 25 tails, then I would state that that

set of 50 tosses indicates that you aren't using a fair coin.

** On average, for a "large number" of tosses of a fair coin, the proportion of

heads to tails will more so even out.

for serious consideration.

- Joined
- Feb 7, 2012

- Messages
- 47

Sorry everyone, the above is what I was really looking for !susumandri,

if you really had a serious question regarding this idea, then I would have expected

you to have formulated it such as this:

"Given two sets of 50 coin tosses, one done experimentally and the other 50 chosen

off the top of your head, which set(s) of coin tosses would be indicative of a fair coin?"

If a set of 50 coin tosses (actual or conjured up) would deviate "too much" **

from an average of 25 heads and 25 tails, then I would state that that

set of 50 tosses indicates that you aren't using a fair coin.

** On average, for a "large number" of tosses of a fair coin, the proportion of

heads to tails will more so even out.

Please type a question as originally posed by an instructor and/or a textbook,

for serious consideration.