Which of the following is required to locate proportions of area under the normal curve?
A) compute a z-transformation
B) find the probability of a z score in the unit normal table
C) compute a z-transformation and find the probability of a z score in the unit normal table
D) none of these

Question

Quizplus · Accepted Answer

To locate proportions of area under the normal curve, we need to first standardize the variable by computing a z-transformation. Then, we can use the unit normal table to find the probability of a z score corresponding to a certain area under the curve. Therefore, both steps are required, making choice C the best answer.

Which of the Following Is Required to Locate Proportions of Area