Standard Normal Variable

1. What is the population mean of a Standard Normal Distribution?

• 5

• -1

• 1

• 0

2. Compute the corresponding Z scores if the raw score is X = 50, given μ = 35 and σ = 10.

• -1.5

• 1.5

• 2

• 2.5

3. __________ measures exactly how many standard deviations above or below the mean a data point is.

• Raw Score       

• Normal Random Variable

• Z score

• Summation

4. What should be your score in an aptitude test if you wanted your score to be at Z=2.8 in standard normal distribution with a mean of 110 and a standard deviation of 1.2?

• 113.36

• -113.36

• 3.36

• -3.36

5. Which of the following illustrates the Standard Normal Variable formula?