AQA
AS
FURTHER MATHEMATICS
Paper 2 Statistics
May 2023
, 2
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G/Jun23/7366/2S
, 3
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1 The continuous random variable X has variance 9
The discrete random variable Y has standard deviation 2 and is independent of X
Find Var(X + Y )
Circle your answer.
[1 mark]
5 11 13 85
2 The random variable T has a discrete uniform distribution and takes the
values 1, 2, 3, 4 and 5
Find the variance of T
Circle your answer.
[1 mark]
1 4
13
5 3 2 6
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G/Jun23/7366/2S
AS
FURTHER MATHEMATICS
Paper 2 Statistics
May 2023
, 2
Do not write
outside the
There are no questions printed on this page box
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
G/Jun23/7366/2S
, 3
Do not write
outside the
Answer all questions in the spaces provided. box
1 The continuous random variable X has variance 9
The discrete random variable Y has standard deviation 2 and is independent of X
Find Var(X + Y )
Circle your answer.
[1 mark]
5 11 13 85
2 The random variable T has a discrete uniform distribution and takes the
values 1, 2, 3, 4 and 5
Find the variance of T
Circle your answer.
[1 mark]
1 4
13
5 3 2 6
Turn over for the next question
Turn over U
G/Jun23/7366/2S
