Course home

2.4 Probability Formulae

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Question 14

The events $C\,$ and $D\,$ are such that $P(C)=25\displaystyle P(C) = \frac{2}{5}$ , $P(D)=34\displaystyle P(D) = \frac{3}{4}$ and $P(C∣D)=13\displaystyle P(C|D) = \frac{1}{3}$ .

Find $\cap D)$ .

[2]

Find $P (D^{'} ∣ C)$ .

[3]

Find $\cup D)$ .

[2]

Determine whether the events $C\,$ and $D\,$ are independent, give a reason for your answer.

[3]

Markscheme

2.4 Probability Formulae Questions

A Level
Maths
2.4 Probability Formulae

29 exam-style questions on Edexcel A Level Maths 2.4 Probability Formulae. Each one has a worked solution and a mark scheme showing where the marks go.

2.4 Probability Formulae

Question bank

2.4 Probability Formulae

Medium

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Question 14

The events $C\,$ and $D\,$ are such that $P(C)=25\displaystyle P(C) = \frac{2}{5}$ , $P(D)=34\displaystyle P(D) = \frac{3}{4}$ and $P(C∣D)=13\displaystyle P(C|D) = \frac{1}{3}$ .

Find $\cap D)$ .

[2]

Find $P (D^{'} ∣ C)$ .

[3]

Find $\cup D)$ .

[2]

Determine whether the events $C\,$ and $D\,$ are independent, give a reason for your answer.

[3]

Markscheme

2.4 Probability Formulae Questions

A Level
Maths
2.4 Probability Formulae

29 exam-style questions on Edexcel A Level Maths 2.4 Probability Formulae. Each one has a worked solution and a mark scheme showing where the marks go.