I set up my bell curve. I understand that the mean average is 29 with a standard
ID: 3054766 • Letter: I
Question
I set up my bell curve. I understand that the mean average is 29 with a standard deviation of 2, somewhere down the line my answers were incorrect and I find it hard to believe it has to do with this "round your answer to 2 decimal places" can someone fix my stupid please? Thx.
P.s. this was for question 1.. but if you happy to clearly see question 2 as well and am willing to make me a happy stats student by inquiring about that as well... then God Bless you. Thx in advance.
?Coldplay . The Scieniat :A 63 Hmwk . Areas Under × >Explanation / Answer
P(x > 29)
= P((x - mean)/SD > (29 - mean)/SD)
= P(Z > (29 - 29)/2)
= P(Z > 0)
= 1 - P(Z < 0)
= 1 - 0.5
= 0.5000