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Source: GWD

Level: 5

A certain characteristic in a large population has a distribution that is symmetric about the mean m. If 68 percent of the distribution lies within one standard deviation d of the mean, what percent of the distribution is less than m + d ?

  • A 0.16
  • B 0.32
  • C 0.48
  • D 0.84
  • E 0.92

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