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15)

A darts team is going to play a match on Saturday and on Sunday.

The probability that the team will win on Saturday is 0.45

If they win on Saturday, the probability that they will win on Sunday is 0.67

If they do

**not**win on Saturday, the probability that they will win on Sunday is 0.35

a) Complete the probability tree diagram.

**[2 marks]**

b) Find the probability that the team will win exactly one of the two matches.

**[3 marks]**