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Encyclopedia Galactica => Science => : gh0st June 08, 2011, 07:57:54 AM

: logic maths: having fun 3
: gh0st June 08, 2011, 07:57:54 AM

there are 100 balls which are enumerated since the 1 till 100.
whats the probability to pick a number which is into this inequality
35>=Ballpicked>=72
alternatives:
 

A) 0,35 D) 0,38B) 0,36 E) 0,72

C) 0,37
first I thought that It was 0.37 but It wasnt good luck

: Re: logic maths: having fun 3
: Kreek June 08, 2011, 09:56:06 AM

I would go with D) 0.38

Because all the possibilities are:

:

  35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 
Count them and you'll find 38. Then again, 38 / 100 = 0.38.

: Re: logic maths: having fun 3
: Jath June 09, 2011, 03:12:44 AM

i agree, D.

: Re: logic maths: having fun 3
: gh0st June 09, 2011, 06:51:37 AM

yea thats the answer gj

: Re: logic maths: having fun 3
: Kreek June 09, 2011, 09:50:19 AM

: gh0st  June 09, 2011, 06:51:37 AM

yea thats the answer gj

Woohoo, what did I won?  :P

: Re: logic maths: having fun 3
: B514BD1DF1472B7E June 09, 2011, 10:32:32 PM

: Kreek  June 09, 2011, 09:50:19 AM

Woohoo, what did I won?  :P

Honour, I guess.. And maybe some intelligence  ;)

: Re: logic maths: having fun 3
: cludthin June 14, 2011, 02:05:52 AM

35>=Ballpicked>=72

Ballpicked <= 35 AND ballpicked >=72

Right answer: F) 0.
There is no number lesser than 35 ang higher than 72.
Can I get my grammar nazi award now?

: Re: logic maths: having fun 3
: Kreek June 14, 2011, 09:51:48 AM

: cludthin  June 14, 2011, 02:05:52 AM

Ballpicked <= 35 AND ballpicked >=72

Right answer: F) 0.
There is no number lesser than 35 ang higher than 72.
Can I get my grammar nazi award now?

Win! Here's your prize!


(http://img100.imageshack.us/img100/7479/you_win_the_prize.jpg)

: Re: logic maths: having fun 3
: Huntondoom June 14, 2011, 11:27:57 AM

: cludthin  June 14, 2011, 02:05:52 AM

Ballpicked <= 35 AND ballpicked >=72

Right answer: F) 0.
There is no number lesser than 35 ang higher than 72.
Can I get my grammar nazi award now?

first of all:

35>=Ballpicked>=72

is written right in calculus, both are accept as far As I know :P

: Re: logic maths: having fun 3
: cludthin June 14, 2011, 04:07:47 PM

: Huntondoom  June 14, 2011, 11:27:57 AM

first of all:

is written right in calculus, both are accept as far As I know :P

Hm, that's interesting. So you say that 1 ≥ x ≥ 10 is equivalent 1 ≤ x ≤ 10? Or I do understand it wrong somehow?

: Re: logic maths: having fun 3
: Huntondoom June 14, 2011, 04:54:37 PM

: cludthin  June 14, 2011, 04:07:47 PM

Hm, that's interesting. So you say that 1 ≥ x ≥ 10 is equivalent 1 ≤ x ≤ 10? Or I do understand it wrong somehow?

it is simply compressed what you write is 35>=Ballpicked>=72
but what you must think is:
35>=Ballpicked        and        Ballpicked>=72
so it says
35 is greater then or equel to ballpicked
and BallPicked is greater then or equal to 72
But I think something went wrong in the writings
since 35 has to be bigger or equal to ballpicked while at the same time ballpicked has to be bigger or equal then 72
so 35 should be bigger then 72
so there is something wrong here :P

: Re: logic maths: having fun 3
: Stackprotector June 14, 2011, 05:10:03 PM

: gh0st  June 08, 2011, 07:57:54 AM

there are 100 balls which are enumerated since the 1 till 100.
whats the probability to pick a number which is into this inequality
35>=Ballpicked>=72

ghost writes it, :P

: Re: logic maths: having fun 3
: cludthin June 14, 2011, 05:27:11 PM

: Huntondoom  June 14, 2011, 04:54:37 PM

it is simply compressed what you write is 35>=Ballpicked>=72
but what you must think is:
35>=Ballpicked        and        Ballpicked>=72
<...>
so there is something wrong here :P

Oh, I've misunderstood you. Peace. :-)