题库 > 数学PS > 题目0534zk
题目内容
Of the 300 subjects who participated in an experiment using virtual-reality therapy to reduce their fear of heights, 40 percent experienced sweaty palms, 30 percent experienced vomiting, and 75 percent experienced dizziness. If all of the subjects experienced at least one of these effects and 35 percent of the subjects experienced exactly two of these effects, how many of the subjects experienced only one of these effects?
  • A105
  • B125
  • C130
  • D180
  • E195
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正确答案: D
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题目基本信息

  • 所属科目:数学PS
  • 题目来源1:OG15-178
  • 题目来源2:OG16-192
  • 题目来源3:OG17-203
  • 题目来源4:OG18-208
  • 题目来源5:OG19-208
  • 正确率:96%
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