The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 10 minutes. What is the z-Score for a student who finishes the test in 45 minutes?

**Solution:-**

z =

z =

z = -1.5

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# Problem 650

learn maths and leave the fear of it

The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 10 minutes. What is the z-Score for a student who finishes the test in 45 minutes?

**Solution:-**

z =

z =

z = -1.5