A talent exam is conducted annually which has a mean score of 200 and a standard deviation of 30. If a student’s Z-score is 1.50, what was his score in the exam?
A. 245
B. 170
C. 230
D. None of the above
Answer:D
A talent exam is conducted annually which has a mean score of 200 and a standard deviation of 30. If a student’s Z-score is 1.50, what was his score in the exam?
A. 245 B. 170 C. 230 D. None of the above