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posted by  hondagirl97couve on 5/28/2008 11:25:51 PM  |  status: Live  

help me 5 pretty pretty pleaseeeeeeeeeeeeeeee

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Basketball: fouls

Data for this problem are based on information from stats basketball scoreboard. It is thought that basketball teams that make too many fouls in a game tend to lose the game even if they otherwise play well. Let x be the number of fouls more them (i.e., over and above) the opposing team let Y be the percentage of times the team with the larger number of fouls wins the game.

X:   0      2      5      6

Y:   50  45    33    26

Complete parts (a) through (e) given ?× = 13, ?y = 154, ?×2 = 65, ?y2 = 6290, ?×y = 411, and r = -0.988.

 (f) if a team had x = 4 fouls over and above the opposing team what does the least-squares equation forecast for y?
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Sage
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posted by Chaosriders on 5/29/2008 12:06:48 AM  |  status: Live
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hondagirl97couve's comment:
"sorry I dont know why it will not let me post it here!!!"
Response Details:
hey what is the question mark means?
"to be smart, one has to realize oneself as not smart"    by Chaosriders

I have return!!!!!!!!!!!!!
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posted by hondagirl97couve on 5/29/2008 12:11:59 AM  |  status: Live
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Response Details:
 it's a summation symbol sorry I do not know why it will not let me post it it always changes it to ? thanks for the help
Sage
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posted by Chaosriders on 5/29/2008 12:19:12 AM  |  status: Live
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hondagirl97couve's comment:
"Thanks okay I can still see...lol "
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Sorry it kinda blurry
"to be smart, one has to realize oneself as not smart"    by Chaosriders

I have return!!!!!!!!!!!!!
Oracle
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posted by Pilly on 5/29/2008 12:26:04 AM  |  status: Live
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hondagirl97couve's comment:
"Thanks will you help with part b?"
Response Details:

 
 
Multiply the bottom equation by -5 and then add them together
 
411 = 13 b0 + 65 b1
-770= -20b0 - 65 b1
 
-329 = -7 b0
 
b0 = 47      b1 = -3.077
 
Regression equation is     y = -3.077x + 47
 
With 4 fouls, the forcast would be -3.077 (4) + 47  = 34.7
“There's no sense in being precise when you don't even know what you're talking about.”

 John von Neumann quote
 
There is no philosophy which is not founded upon knowledge of the phenomena, but to get any profit from this knowledge it is absolutely necessary to be a mathematician.
Daniel Bernoulli 
                  
 
 
 
 
                         
 
 
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posted by hondagirl97couve on 5/29/2008 12:27:11 AM  |  status: Live
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can some one any one help me with part b ?  PLEASE!!
 
 

B)     Σ X = 0 + 2 + 5 + 6 = 13
Oracle
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posted by Pilly on 5/29/2008 1:06:46 AM  |  status: Live
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Response Details:
There is nothing to answer. It is a summation. You just need to add up the numbers which is already done.
 
In the future, can you please type in ALL the parts of each question rather than a) then b) the c).
It is very annoying to have to keep coming back to the same post over and over again. You will probably get a better response too rather than having to keep typing in separate questions.
 
You can only post one question per post, but that question can have multiple parts as long as they are ALL RELATED TO THE SAME WORD PROBLEM.
“There's no sense in being precise when you don't even know what you're talking about.”

 John von Neumann quote
 
There is no philosophy which is not founded upon knowledge of the phenomena, but to get any profit from this knowledge it is absolutely necessary to be a mathematician.
Daniel Bernoulli 
                  
 
 
 
 
                         
 
 
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