What is the normal curve area, to the nearest whole percent, between z= -0.38 and z= +1.5?

A. 58%
B. 79%
C. 29%
D. -29%
E. 22%

Question

What is the normal curve area, to the nearest whole percent, between z= -0.38 and z= +1.5? 

A. 58%
B. 79%
C. 29%
D. -29%
E. 22%

michele_laino · Answer

Please, do you refer to the Gaussian distribution?

hockeychick23 · Answer

normal distribution yea

michele_laino · Answer

have you got the table of the "erf" function?

hockeychick23 · Answer

no, i can look it up tho

hockeychick23 · Answer

ok i found one

michele_laino · Answer

from the table of the "erf" function, I read that your answer is:
43.32% + 14.8% = 58.12%
Please check that result

hockeychick23 · Answer

hmm i didn't get that i looked up 1.5 and it said .03389

michele_laino · Answer

please you have to pick the value of the area between z=0 and z= 1.5 times the satndard deviation sigma

hockeychick23 · Answer

oh now i got it, it was a bad table

michele_laino · Answer

here is the table: