Question

Which of the following is true about the areas described under the normal curve?
(Points : 1)
The area below the mean is greater than the area above the mean.

The area in the range from z = 0 to z = 1 is the same as the area in the range from z = 1 to z = 2.

Roughly 50% of the observations are located at the mean of the distribution.

Fewer than one percent of the cases are located three standard deviations above or below the mean.

95% of the observations have values twice that of the mean.

Answer 1

@perl

Answer 2

what do you think?

Answer 3

I think its C

Answer 4

Roughly 50% of the observations are located at the mean of the distribution.?

Answer 5

yup!

Answer 6

50% of the observations are to the left of the mean ... and 50% to the right of the mean.

AT the mean or any other specific number the area is always 0% ... it is like trying to find the Area of a line ... doesn't make sense

Answer 7

ahh so i chose wrong lol

Answer 8

then the only other answer would be B

Answer 9

z=0 is the mean

Answer 10

a rough diagram

Answer 11

@IMHERETOHELP Please do not post anything without FIRST offering your OWN views and opinions. YOU do the work.

Answer 12

ok

Answer 13

sorry, but some of these i just dont know

Answer 14

Im not gonna say something idk for sure

Answer 15

Can you see it's not B either...

Answer 16

yah let me see one sec give me a min

Answer 17

yah go back to this http://www.oxfordmathcenter.com/images/notes/290-00.gif

Answer 18

Did I forget to say, "No Excuses". If you attend class and read the material, it is not possible for you to have no clue unless you are totally in the wrong class. Do better.

Answer 19

Well if the normal distribution goes on to infinity, then maybe it is A