Practice Quiz

DSST Principles of Statistics Exam Prep - Question List

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16. The division of your company that you oversee contains 18 employees whose total salary last year was $855,000. The average salary of all company employees with the same level of responsibility and qualifications is $50,000. Is your department above or below the company average?
  1. Below by 20%
  2. Above by 10%
  3. Below by 5%
  4. Above by 15%
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17. What is the outlier in the following set: 11, 22, 33, 44, 55, 112, 23, 34 and 45?
  1. 55
  2. 11
  3. 112
  4. There is no outlier.
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18. If Martin invests $20,000 for 20 years and his investment earns 20% interest compounding quarterly, what will it be worth at the end of his investment period?
  1. $991,228.82
  2. $120,000.00
  3. $244,529.20
  4. $424,872.36
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19. What is the mean for the following expenditures? $79.84, $278.99, $342.16, $466.25, $111.39, $502.47, $98.12
  1. $278.99
  2. $268.46
  3. $354.22
  4. $317.54
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20. A variable that affects the data collected but is not accounted for or demonstrated in the statistical measure of the data is a:
  1. Stealth variable
  2. Lurking variable
  3. Independent variable
  4. Dependent variable
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