Question

help with statisitcs

Answer 1

A. It is related to the cdf of the normal distribution. There's some stuff here http://en.wikipedia.org/wiki/68-95-99.7_rule

Answer 2

can you help on this one?

Answer 3

Go to the following link and select "normal.pdf".
http://www.math.bgu.ac.il/~ngur/Teaching/probability/
Find the cumulative probabilities for z = 1.5 and z = -1.5.
Find the value of\[z _{(1.5)}-z _{(-1.5)}=?\]

Answer 4

@yashar806 What was the result of your calculation?

Answer 5

0.2652

Answer 6

What values did you get for z(1.5) and z(-1.5) ?

Answer 7

0.9332

Answer 8

0.0668

Answer 9

sorry, i calculate them wrong

Answer 10

lol

Answer 11

i got the answer thanks

Answer 12

You're welcome :)