OCR Further Statistics AS Specimen — Question 4

Exam BoardOCR
ModuleFurther Statistics AS (Further Statistics AS)
SessionSpecimen
TopicGeometric Distribution
TypeNon-geometric distribution identification

4
  1. Four men and four women stand in a random order in a straight line. Determine the probability that no one is standing next to a person of the same gender.
  2. \(x\) men, including Mr Adam, and \(x\) women, including Mrs Adam, are arranged at random in a straight line. Show that the probability that Mr Adam is standing next to Mrs Adam is \(\frac { 1 } { X }\).