Question
Which of the following are true about z-scores? I: They are positive whenever X is greater than the mean in a normal distribution. II: The
Which of the following are true about z-scores?
I: They are positive whenever X is greater than the mean in a normal distribution.
II: The standard normal distribution, which is the distribution of all z-scores, has a mean of 0 and standard deviation of 1.
III: They can be found by taking X, subtracting the mean, and dividing the result by the standard deviation.
| a. | I only | |
| b. | II only | |
| c. | III only | |
| d. | I and II only | |
| e. | I and III only | |
| f. | II and III only | |
| g. | I, II, and III | |
| h. | None of these |
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Intermediate Algebra Functions & Authentic Applications
Authors: Jay Lehmann
5th Edition
0321923464, 9780321923462
