Math Help!!

[junior25]

Jim, a talented professor, administers an achievement test to a group of his students. The mean of the distribution of the scores is 40 and the standard deviation is 8. In this distribution, a raw score of 56 would be equivalent to a z-score of:


A. +1.0
B. +2.0
C. +8.0
D. +16.0

 

[Deleted member 4993]

Jim, a talented professor, administers an achievement test to a group of his students. The mean of the distribution of the scores is 40 and the standard deviation is 8. In this distribution, a raw score of 56 would be equivalent to a z-score of:


A. +1.0
B. +2.0
C. +8.0
D. +16.0

Please share with us your work, indicating exactly where you are stuck - so that we may know where to begin to help you.