what is the area under the normal bell curve between z-scores of 1.82 and 2.09
Stacey Warren - Expert brainly.com
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Need to find a table quick hang on a sec lol
The standard normal distribution is a normal distribution with a standard deviation on 1 and a mean of 0.
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the choices i have are
could it be A, because its between 1.82 &2.09?
Okay got one lol
So first we have a normal bell curve
*Kinda butchered it but oh well lol
So we have a z-score of 1.82 and 2.09
From this table...the value for the area given will be from -infinity to the z-score...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%
The reasoning behind this is...
We find the area under the curve up to 2.09
And then we find the area under the curve up to 1.82
ah..yeah now i remember something about that from when i took the actual class.
*facepalm* thanks so much!
Now of course be want the area BETWEEN the 2 scores...so as we can see...we have some overlap....
so we merely subtract :D
And lol no problem :D
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