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Q. If the probability of an event is 0.2, what is the probability of the event not occurring?
  • A. 0.2
  • B. 0.5
  • C. 0.8
  • D. 1.0
Q. If the variance of a data set is 16, what is the standard deviation?
  • A. 4
  • B. 8
  • C. 16
  • D. 2
Q. What is the range of the data set: 10, 15, 20, 25, 30?
  • A. 15
  • B. 20
  • C. 25
  • D. 30
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