Edexcel S1 2018 June — Question 3

Exam BoardEdexcel
ModuleS1 (Statistics 1)
Year2018
SessionJune
TopicNormal Distribution
TypeSymmetric properties of normal
3. The random variable \(Y\) has a normal distribution with mean \(\mu\) and standard deviation \(\sigma\) The \(\mathrm { P } ( Y > 17 ) = 0.4\) Find
  1. \(\mathrm { P } ( \mu < Y < 17 )\)
  2. \(\mathrm { P } ( \mu - \sigma < Y < 17 )\)
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