Question

It is found that the number of raisins in a box of popular cereal is normally distributed, with a mean of 133 raisins per box and standard deviation of 10 rasins. My box has 157 rasins. What is the z-score for this box of cereal?

Answer 1

do you know the Standardization equation?

Answer 2

yes it is in my notes!

Answer 3

if just get confused as to where each number needs plugged in

Answer 4

ok let me write it out

Answer 5

\[Z=\frac{ \mu-x }{\sigma }\]

Answer 6

thank you

Answer 7

so µ= 133 because µ is the mean. x= 157 because it is the x value you are looking for. and sigma ( the funny letter under the fraction) is 10 because the standard deviation is 10

Answer 8

then plug all those into the equation and you should get a positive number

Answer 9

like 2.4 or somthing i'm just guessing

Answer 10

cool?

Answer 11

great, thanks again!