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anonymous
 one year ago
what is the area under the normal bell curve between zscores of 1.82 and 2.09
anonymous
 one year ago
what is the area under the normal bell curve between zscores of 1.82 and 2.09

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johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.0Need to find a table quick hang on a sec lol

shelby33
 one year ago
Best ResponseYou've already chosen the best response.0The standard normal distribution is a normal distribution with a standard deviation on 1 and a mean of 0.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the choices i have are A:1.96% B:1.61% C:0.82% D:2.23%

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0could it be A, because its between 1.82 &2.09?

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.0Okay got one lol So first we have a normal bell curve dw:1433865528044:dw *Kinda butchered it but oh well lol So we have a zscore of 1.82 and 2.09 From this table...the value for the area given will be from infinity to the zscore...so Area from infinity to 2.09 = 0.9817 Area from infinity to 1.82 = 0.9656 So what we need to do is subtract these 2 numbers \[\large 0.9817  0.9656 = 0.0161\] Since you have percents as your answer choices...that will be 1.61%

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.0The reasoning behind this is... We find the area under the curve up to 2.09 dw:1433865849226:dw And then we find the area under the curve up to 1.82 dw:1433865898143:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ah..yeah now i remember something about that from when i took the actual class. *facepalm* thanks so much!

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.0Now of course be want the area BETWEEN the 2 scores...so as we can see...we have some overlap.... dw:1433865949260:dw so we merely subtract :D

johnweldon1993
 one year ago
Best ResponseYou've already chosen the best response.0And lol no problem :D

shelby33
 one year ago
Best ResponseYou've already chosen the best response.0johnweldon1993 plez message I need to ask u some thing
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