2.
A bag contains 20 balls.
The ratio of red to blue balls is 3:7
A ball is picked at r...
Mathematics, 15.07.2020 01:01 keke6361
2.
A bag contains 20 balls.
The ratio of red to blue balls is 3:7
A ball is picked at random and replaced
The bag is shaken and then a second ball is picked at random
2 (a) Work out the probability that two red balls are picked
[3 marks)
Answer
Answers: 1
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