Page 73 - Math SL HB Sem 3
P. 73
Staiistics and Probability
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Example:2
A card is randomly selected from an ordinary pack of52 playing cards.Find the
probability that it is either a 'black card' or a 'king'.
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Example:3
A marble is drawn from an um containing ,8 marbles ofwhich 5 are red and 3 are
blue-lrt A be the event lhe marble is red and let B the event:the marble is blue.Find
P(A), P@) and P(Att B).
Example: 7
A box of chocolates contains 6 with hard cenaes (H) and l2 with soft centres (S).
(a) Are the events H and S mutually exclusive?
(b) Find P(H) ii) P(S) iii) P(Hns) iv) P(Hr; S)
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