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Given the following,
x1=2 x2=1 x3=2 x4=5 x5=4 x6=8
Find:
3
∑ ( x subi  1 ) 2
i=1
 one year ago
 one year ago
Given the following, x1=2 x2=1 x3=2 x4=5 x5=4 x6=8 Find: 3 ∑ ( x subi  1 ) 2 i=1
 one year ago
 one year ago

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dpflanBest ResponseYou've already chosen the best response.4
I think I can handle this ;)
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
\[\sum_{i=1}^{i=3} (x_i  1) ^2 \]
 one year ago

amistre64Best ResponseYou've already chosen the best response.0
the suspense is killing me :)
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
You given 6 x_i values. The equation only wants you to consider x_i for (i=1 until i=3), that would be x1, x2, x3. The sigma is the symbol for sum. So the problem is to find the sum for the following events: plugging in each x_i subtracting 1 then squaring that. Hence you'll have 3 values that you then add to together to get the final value. \[ i=1, x_1 = 2, (21)^2 = 1\] \[i=2, x_2 = 1, ((1) 1)^2 = ... \] ... and so on
 one year ago

amistre64Best ResponseYou've already chosen the best response.0
could we expand the binomial and pick it apart sum for sum?
 one year ago

sleestakBest ResponseYou've already chosen the best response.0
OH! THANK YOU. DPFLAN, you are the best <3
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
@amistre64 for sure, that would create even more suspense!
 one year ago

amistre64Best ResponseYou've already chosen the best response.0
the butler did it, im sure of it ....
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
@sleestak No problem, glad I could help!
 one year ago

amistre64Best ResponseYou've already chosen the best response.0
yes, with the candlestick lol ... get a clue
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
@sleestak I imagine you may have some more problems that are similar to this that you need to work on, so good luck
 one year ago

sleestakBest ResponseYou've already chosen the best response.0
thanks. I'll tell you what I come up with
 one year ago

sleestakBest ResponseYou've already chosen the best response.0
14. OK. I think I can do the other problem. THANKS :D
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
x1 > 1 x2 > 4 x3 > 9 SUM = 14, yeah, you're now an expert it seems
 one year ago

sleestakBest ResponseYou've already chosen the best response.0
you guys need to list finance as the next subject :D
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
http://openstudy.com/study#/groups/Finance
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
It actually had/has a pretty strong following/support from a professor at NYU  http://pages.stern.nyu.edu/~adamodar/
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
Math is the most active subject
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
So if your questions are mathematical, you'd probably be best served to ask them here because there is a greater mass of users in this group, so you're more likely get an answer.
 one year ago

sleestakBest ResponseYou've already chosen the best response.0
yeah totally. this is awesome! I am going to use this all the time in school
 one year ago

dpflanBest ResponseYou've already chosen the best response.4
awesome, tell your friends too! Also, I've the final question you asked about solved
 one year ago

sleestakBest ResponseYou've already chosen the best response.0
should I now 'close' this question?
 one year ago
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