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2 marksIndependent Events

CSEC Additional Mathematics · 2018 · Paper 2 · Question 7(c)(i)

A regular six-sided die is tossed 2 times.

Calculate the probability of obtaining a 5 on the 2nd toss, given that a 5 was obtained on the 1st toss.

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Other parts of this question

  1. 7(a)(i)Determine the median score.[2 marks]
  2. 7(a)(ii)Calculate the interquartile range of the scores.[3 marks]
  3. 7(a)(iii)In the space below, construct a box-and-whisker plot to illustrate the data and comment on the shape of the distribution.[4 marks]
  4. 7(b)(i)Illustrate this information on a tree diagram showing ALL the probabilities on ALL branches.[3 marks]
  5. 7(b)(ii)An insecticide is selected at random, determine the probability that it is unsuccessful.[3 marks]
  6. 7(c)(ii)Determine the probability that a 5 is obtained on both tosses.[2 marks]
  7. 7(c)(iii)Explain why the answers in (c) (i) and (c) (ii) are different.[1 mark]

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