More on Normal Distributions

Question 1 out of 4.
A standard normal distribution has:

 a mean of 1 and a standard deviation of 1

 a mean of 0 and a standard deviation of 1

 a mean larger than its standard deviation

 all scores within one standard deviation of the mean

Question 2 out of 4.
A number 1.5 standard deviations below the mean has a z score of:

 1.5

 -1.5

 3

 more information is needed

Question 3 out of 4.
A distribution has a mean of 16 and a standard deviation of 6. What is the Z score that corresponds with 25?

Question 4 out of 4.
A distribution has a mean of 18 and a standard deviation of 5. Use the table presented in this section to determine the proportion of the scores (area) below 6.