M MRS.FREE New member Joined Feb 28, 2009 Messages 42 Mar 18, 2009 #1 don't know how to do this, please help... find the area under the standard normal distribution curve of; to the left of z= -2.15 and to the right of z= 1.62= i see how to do the other types i did, but i can't get how to set this up...ty!
don't know how to do this, please help... find the area under the standard normal distribution curve of; to the left of z= -2.15 and to the right of z= 1.62= i see how to do the other types i did, but i can't get how to set this up...ty!
D Deleted member 4993 Guest Mar 18, 2009 #2 Re: don't know how to do this, please help... MRS.FREE said: find the area under the standard normal distribution curve of; to the left of z= -2.15 and to the right of z= 1.62= i see how to do the other types i did, but i can't get how to set this up...ty! Click to expand... Draw a rough sketch Draw the limit lines (roughly) Draw the symmetry line. Now calculate areas and add.
Re: don't know how to do this, please help... MRS.FREE said: find the area under the standard normal distribution curve of; to the left of z= -2.15 and to the right of z= 1.62= i see how to do the other types i did, but i can't get how to set this up...ty! Click to expand... Draw a rough sketch Draw the limit lines (roughly) Draw the symmetry line. Now calculate areas and add.
M MRS.FREE New member Joined Feb 28, 2009 Messages 42 Mar 18, 2009 #3 Re: don't know how to do this, please help... like this??? -2.15= .0158 1.62= .9474 (1.000-.9474=.0526) .0526+.0158= .0684 i think im wrong, am i?
Re: don't know how to do this, please help... like this??? -2.15= .0158 1.62= .9474 (1.000-.9474=.0526) .0526+.0158= .0684 i think im wrong, am i?
