Solution for question 6
to figure out the z score use this formula:
mean = 50 sd = 10 and z = 1
10 = x - 50
x = 60
Will post what I got when I get something!.. heh dont let me not having an answer stop you ;/
For the second one i got aprox .39% of the population.
got 40 for the first one
I think I have those please help with the second image.
For the second one i think it is 12 and 0 respectively, not sure how to calculate the third one. got 69 for C
hah.. please help with the third one
z score is the result of transforming a RV by letting:Originally Posted by ThePerfectHacker
.
Then .
In rough terms it is the transform that is applied to allow the use of tables
of the standard normal distribution to be used to obtain probabilities for
random variables which have a normal distribution which is not standard.
RonL