...If you throw a dice 6 times, what's the chance that you'd get a six on:
a: exactly one of the throws.
b: one or more of the throws.
?????
...If you throw a dice 6 times, what's the chance that you'd get a six on:
a: exactly one of the throws.
b: one or more of the throws.
?????
I hate odds and I hate probability.
I'm asking about the chance.Quote:
Originally Posted by rubah
whats with all the math threads there making my brain hurt.
you may as well just make one big one.
Is it a fair dice? Or will it screw you and run off with your best friends wife as soon as its robbed you of all your money?
Wasn't that coin thing of Scrubs, but I cant remember what it was.
And for the dice: Theres a 1 in 6 (1:6) chance that you would get a 6. But I dont think anyone can work out B unless you say how many other throws there will be.
Wikipedia says chance is probability.Quote:
Originally Posted by PureghettoI'm asking about the chance.Quote:
Originally Posted by rubah
One coin is not a quarter but the other one could be lol
It says it will be rolled six times, and gives no indication that there would be no reason to stop rolling. So yeah, B is pretty easy, easier than A at least.Quote:
Originally Posted by Albel
I detested probability and statistics class in high school. Yuck.
Assume X = rolling a 6 (also / indicates a fraction, ^ indicates exponent)
for a) P(X=1)= (6C1)(1/6)^1(1- 1/6)^6-1
= (6C1)(1/6)(5/6)^5
= (6)(1/6)(3125/7776)
= 3125/7776
Therefore the probability of rolling a 6 in exactly one of the six throws is 3125/7776
for b)
P(X > or = 1)= 1- P(X=0)
=1- ((6C0)(1/6)^0(1-1/6)^6-0)
=1- ((1)(1)(5/6)^6)
=1- ((1)(1)(.334897976))
=1-(.334897976)
= .665102023
Therefore the probability of rolling at least 1 six in six rolls is .665
Scrubs
one is a dime.
1/6 and 1/6
I make a) to be 3125/7776 = 0.402 (3sf)
b) comes out as 1 - (5/6)^6 = 0.665 (3sf)
Dice throwing isnt determined by chance, it is determined by skill, a random number generator on the other hand...
To roll one six, you have to roll five numbers that aren't six (seems simple enough). The probability of that is 5^5 / 6^5. Then the last number has to be six, a 1/6 chance, making the probability 5^5 / 6^6. Of course, this can happen in six different ways (rolling a six on any one of your six throws), so the final probability is 5^5 / 6^5. = 3125/7776, approximately a 2/5 chance. The probability of rolling one or more six is the one minus the probability of not rolling a six: The probability of rolling no sixes is 5^6 / 6^6 = 15625/46656... or approximately 1/3. 1 - 15625/46656 = 31031/46656, approximately 2/3.
Yeah, basically a rewording of griff's and starseeker's answers, only more indecipherable.
Oh man, doing Maths out of school is FAIL.Quote:
Originally Posted by Pureghetto
I'm afraid you have it backwards. :PQuote:
Originally Posted by ZeldyOh man, doing Maths out of school is FAIL.Quote:
Originally Posted by Pureghetto
I'm still giddy about winning Necro's pirate-math thread. :love:
The one coin is not a quarter . . . but the other one is . . . making the one coin a dime.
I am the smartest . . . I am the smartest! I AM THE SMARTEST!!! Wait . . . what was the question? I don't know how that gerbil got in your underwear drawer. You haven't had your Weedies, have you?
I don't want to grow up . . . I like it just where I am.
In this safely padded room that I'm bouncing around in.
My arms are tied up . . . my arms are tied up . . . !
? Why are my arms tied up? Ah, c'mon!
By the way . . . the answer to your insane questions are answered as simply as saying these equally insane answers that actually equal out to being less than many and more than none which in case you didn't realize somehow equals one . . . anyway. The answer is 6. Six is a lucky number. Unless it's combined with another and another and then suddenly stops . . . if six is added to sixty and six hundred, you'd better get on your knees and pray, 'cause that's apparently a very bad sign.