Harry had a z-score of 1.23 on a test that had a mean of 72 & a σ (standard dev.) of 13. Harry's raw score was

a. 102





b. 88





c. 78





d. 68





e. 52





or is it none of these

Harry had a z-score of 1.23 on a test that had a mean of 72 %26amp; a σ (standard dev.) of 13. Harry's raw score was
let z=z-score,


m=mean,


s=standard dev. ,


H=Harry's raw score





z=(H-m)/s


1.23=(H-72)/13


15.99=(H-72)


H=15.99+72


H=87.99


if you round it up, the answer will be 88





Therefore, Harry's raw score is a.88.