Question 12

Section A · 1 mark · 58% correct

The question in our own words · page 7

\(X\) is normally distributed. The probability that \(X\) is more than \(200\) is \(0.325\), and the probability that it lies between \(180\) and \(200\) is \(0.589\). Which mean and standard deviation are closest?

  1. Amean \(190\), standard deviation \(10\)
  2. Bmean \(190\), standard deviation \(11\)
  3. Cmean \(195\), standard deviation \(10\)
  4. Dmean \(195\), standard deviation \(11\)
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