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Suppose a certain distribution has a mean of 10 and a variance of 4. What is a z-score of an observation of 7? a. z
Suppose a certain distribution has a mean of 10 and a variance of 4. What is a z-score of an observation of 7?
| a. | z = -1.5 | |
| b. | z = -0.5 | |
| c. | z = 0.5 | |
| d. | z = 1.5 |
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College Algebra
Authors: Murray R Spiegel, Robert E Moyer
4th Edition
0071825851, 9780071825856
