2.3 Probability

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Question 23

The events $A\,$ and $B\,$ are such that $P(A)=25\displaystyle P(A) = \frac{2}{5}$ , $P(A∩B)=110\displaystyle P(A \cap B) = \frac{1}{10}$ , $P(A∣B)=27\displaystyle P(A|B) = \frac{2}{7}$ . Find

a.

$P (B)$

[3]

b.

$\cup B)$

[3]

c.

$P (B ∣ A^{'})$

[3]

2.3 Probability

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Question 23

The events $A\,$ and $B\,$ are such that $P(A)=25\displaystyle P(A) = \frac{2}{5}$ , $P(A∩B)=110\displaystyle P(A \cap B) = \frac{1}{10}$ , $P(A∣B)=27\displaystyle P(A|B) = \frac{2}{7}$ . Find

a.

$P (B)$

[3]

b.

$\cup B)$

[3]

c.

$P (B ∣ A^{'})$

[3]

2.3 Probability

Question 23

2.3 Probability Questions

2.3 Probability

Question 23

2.3 Probability Questions