#21
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Re: $10 to do a Math Problem
Thanks Big_Jim.
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#22
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Re: $10 to do a Math Problem
[ QUOTE ]
First one: x1 = +1.5 with p1 = 0.5 x2 = -1 with p2 = 0.5 E(x) = 0.25 v = p1(x1 - E(x))^2 + p2(x2 - E(x))^2 v = 0.5(1.5 - 0.25)^2 + 0.5(-1-0.25)^2 v = 1.5625 Second one: x1 = 6 with p1 = 0.16666 x2 = -1 with p2 = 0.83333 E(x) = 0.167 v = p1(x1 - E(x))^2 + p2(x2 - E(x))^2 v = 0.1666(6 - 0.167)^2 + 0.83333(-1 - 0.167)^2 v = 6.8055 [/ QUOTE ] looks about right |
#23
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Re: $10 to do a Math Problem
[ QUOTE ]
Situation 2 variance= 0% http://www.youtube.com/watch?v=q7ufOkRoShk [/ QUOTE ] haha, this is awesome I randomly found this, when after looking at that: http://video.stumbleupon.com/?s=0zg5...swkgjde43fqm4t |
#24
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Re: $10 to do a Math Problem
[ QUOTE ]
[ QUOTE ] First one: x1 = +1.5 with p1 = 0.5 x2 = -1 with p2 = 0.5 E(x) = 0.25 v = p1(x1 - E(x))^2 + p2(x2 - E(x))^2 v = 0.5(1.5 - 0.25)^2 + 0.5(-1-0.25)^2 v = 1.5625 Second one: x1 = 6 with p1 = 0.16666 x2 = -1 with p2 = 0.83333 E(x) = 0.167 v = p1(x1 - E(x))^2 + p2(x2 - E(x))^2 v = 0.1666(6 - 0.167)^2 + 0.83333(-1 - 0.167)^2 v = 6.8055 [/ QUOTE ] looks about right [/ QUOTE ] Maths is EZ. BBV > SMP, DUCY? |
#25
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Re: $10 to do a Math Problem
[ QUOTE ]
[ QUOTE ] Situation 2 variance= 0% http://www.youtube.com/watch?v=q7ufOkRoShk [/ QUOTE ] haha, this is awesome I randomly found this, when after looking at that: http://video.stumbleupon.com/?s=0zg5...swkgjde43fqm4t [/ QUOTE ] Ship $ for most entertaining post obv. |
#27
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Re: $10 to do a Math Problem
the answer is 24, ill let the others elaborate
SHIP IT |
#28
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Re: $10 to do a Math Problem
[ QUOTE ]
[ QUOTE ] First one: x1 = +1.5 with p1 = 0.5 x2 = -1 with p2 = 0.5 E(x) = 0.25 v = p1(x1 - E(x))^2 + p2(x2 - E(x))^2 v = 0.5(1.5 - 0.25)^2 + 0.5(-1-0.25)^2 v = 1.5625 Second one: x1 = 6 with p1 = 0.16666 x2 = -1 with p2 = 0.83333 E(x) = 0.167 v = p1(x1 - E(x))^2 + p2(x2 - E(x))^2 v = 0.1666(6 - 0.167)^2 + 0.83333(-1 - 0.167)^2 v = 6.8055 [/ QUOTE ] [img]/images/graemlins/heart.gif[/img] PM me with where you want it sent, or post it. [/ QUOTE ] 8:19 > 8:30. My pot. Excuse me for posting in the correct forum. I answered in SMP as well as Probability. It didn't occur to me that you actually asked this in THREE forums in less than 3 hours. [img]/images/graemlins/mad.gif[/img] |
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