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Mathematics, 29.01.2021 15:20 alarconanais07

Tina has two bags of counters, Bag A and Bag B. There are 5 red counters and 3 blue counters in bag A.
There are 4 red counters and 5 blue counters in bag B.
Tina takes at random a counter from each bag.
(a) Complete the probability tree diagram.
Bag A
Bag B
Red
Red
Blue
Red
Blue
Blue
(2)
(b) Work out the probability that Tina takes two blue counters.

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