You want to predict success on your second examination using information from your first examination score. The prediction equation is = 5X + 5, the mean on the first examination is 70, and the standard deviation of the second exam is 20. What is your predicted score on the second exam if you scored 20 on the first exam?
A) 85
B) 95
C) 105
D) You need to know the SEE.
E) None of the above

Question

Quizplus · Accepted Answer

Plug in X = 20 to the prediction equation, we get:
Predicted score = 5(20) + 5 = 105
Therefore, the predicted score on the second exam if you scored 20 on the first exam is 105.

You Want to Predict Success on Your Second Examination Using