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5 marksDiscrete Random Variables

CAPE Applied Mathematics Unit 2 · 2011 · Paper 2 · Question 4(b)

The probability that a student is awarded a pass in the statistics examination is 0.84. Find the probability that in a group of 12 students, MORE than two-thirds pass the statistics examination.

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Other parts of this question

  1. 4(a)(i)On a particular stretch of road, there are on average 3 accidents per week. Find the probability that no accidents occur in a particular week.[3 marks]
  2. 4(a)(ii)Find the probability that MORE than 3 accidents occur in a particular week.[3 marks]
  3. 4(a)(iii)Find the probability that EXACTLY 6 accidents occur in a particular fortnight.[3 marks]
  4. 4(c)(i)Calculate the probability that the marbles, in the order drawn, will be coloured white, black and red.[3 marks]
  5. 4(c)(ii)Calculate the probability that one marble of EACH colour will be drawn.[4 marks]
  6. 4(c)(iii)Calculate the probability that the THIRD marble will be white.[4 marks]

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