Quelpr
3 marksProbability Diagrams (Possibility Space, Tree, Venn)

CSEC Additional Mathematics · 2012 · Paper 2 · Question 7(c)(i)

The probability of hiring a taxi from garage A, B, or C is 0.3, 0.5, and 0.2 respectively. The probability that the taxi ordered will be late from A is 0.07, from B is 0.1, and from C is 0.2.

Illustrate this information on a tree diagram showing the probability on all branches.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 7(a)Determine the proportion that own NEITHER a laptop NOR a desktop computer.[4 marks]
  2. 7(b)(i)Find the probability that the marbles drawn are ALL of the SAME colour.[3 marks]
  3. 7(b)(ii)Find the probability that the marbles drawn contain EXACTLY 1 red marble.[3 marks]
  4. 7(c)(ii)a)A garage is chosen at random, determine the probability that the taxi will arrive late.[3 marks]
  5. 7(c)(ii)b)A garage is chosen at random, determine the probability that the taxi will come from garage C given that it is late.[4 marks]

More practice: the rest of this paper · more Probability Diagrams (Possibility Space, Tree, Venn) questions · all CSEC Additional Mathematics past papers