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

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dpflan
 2 years ago
Best ResponseYou've already chosen the best response.4I think I can handle this ;)

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

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.0the suspense is killing me :)

dpflan
 2 years ago
Best ResponseYou've already chosen the best response.4You 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

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.0could we expand the binomial and pick it apart sum for sum?

sleestak
 2 years ago
Best ResponseYou've already chosen the best response.0OH! THANK YOU. DPFLAN, you are the best <3

dpflan
 2 years ago
Best ResponseYou've already chosen the best response.4@amistre64 for sure, that would create even more suspense!

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.0the butler did it, im sure of it ....

dpflan
 2 years ago
Best ResponseYou've already chosen the best response.4@sleestak No problem, glad I could help!

amistre64
 2 years ago
Best ResponseYou've already chosen the best response.0yes, with the candlestick lol ... get a clue

dpflan
 2 years ago
Best 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

sleestak
 2 years ago
Best ResponseYou've already chosen the best response.0thanks. I'll tell you what I come up with

sleestak
 2 years ago
Best ResponseYou've already chosen the best response.014. OK. I think I can do the other problem. THANKS :D

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

sleestak
 2 years ago
Best ResponseYou've already chosen the best response.0you guys need to list finance as the next subject :D

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

dpflan
 2 years ago
Best ResponseYou've already chosen the best response.4Math is the most active subject

dpflan
 2 years ago
Best ResponseYou've already chosen the best response.4So 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.

sleestak
 2 years ago
Best ResponseYou've already chosen the best response.0yeah totally. this is awesome! I am going to use this all the time in school

dpflan
 2 years ago
Best ResponseYou've already chosen the best response.4awesome, tell your friends too! Also, I've the final question you asked about solved

sleestak
 2 years ago
Best ResponseYou've already chosen the best response.0should I now 'close' this question?
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