# Probability using Normal Distribution

Two Psychology majors, in 2 different sections of Clinical Psychology, were comparing test scores. The following gives the students' scores, class mean, and standard deviation for each section:

Section 1 Section 2

Score 84 75

Mean 75 60

Standard deviation 7 8

What is the z-score of the student from section 1 and what is the probability that a student in section 1 will score higher than 84?

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#### Solution Preview

Probability for student from section 1

Mean= 75

Standard deviation = 7

x= 84

z=(x-mean)/standard ...

#### Solution Summary

The solution calculates probability using normal (z) distribution.

$2.19