A female Year 10 student scored 940/1250 on a national test for 15-year-olds.The mean test score was 850,with a standard deviation of 100.With a normal distribution,you require the percentage of pupils who scored higher than this student.What is the first step to working out this answer?
A)Work out the z-score.
B)Perform a t-test.
C)Standardize the data.
D)Remove all errors.

Question

Quizplus · Accepted Answer

The first step in determining the percentage of pupils who scored higher than this student is to calculate the z-score, which standardizes the student's score relative to the mean and standard deviation of the distribution.

A Female Year 10 Student Scored 940/1250 on a National