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Q27: Answers – Paper 1 – November 2018
Q27: Answers – Paper 1 – November 2018
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Amina has two bags.
In the first bag there are 3 red balls and 7 green balls.
In the second bag there are 5 red balls and 4 green balls.
Amina takes at random a ball from the first bag.
She then takes at random a ball from the second bag.
a) Complete the probability tree diagram.
Amina has two bags.
In the first bag there are 3 red balls and 7 green balls.
In the second bag there are 5 red balls and 4 green balls.
Amina takes at random a ball from the first bag.
She then takes at random a ball from the second bag.
a) Complete the probability tree diagram.
b) Work out the probability that Amina takes two red balls.
Question
27)
Amina has two bags.
In the first bag there are 3 red balls and 7 green balls.
In the second bag there are 5 red balls and 4 green balls.
Amina takes at random a ball from the first bag.
She then takes at random a ball from the second bag.
a) Complete the probability tree diagram.
Amina has two bags.
In the first bag there are 3 red balls and 7 green balls.
In the second bag there are 5 red balls and 4 green balls.
Amina takes at random a ball from the first bag.
She then takes at random a ball from the second bag.
a) Complete the probability tree diagram.
[2 marks]
b) Work out the probability that Amina takes two red balls.
[2 marks]