OCR A Level Further Mathematics B (MEI)
Statistics Minor(Y432/01) VERIFIED QP AND MS
Oxford Cambridge and RSA
June 2026 – Afternoon
A Level Further Mathematics B (MEI)
Y432/01 Statistics Minor
Time allowed: 1 hour 15 minutes
You must have:
• the Printed Answer Booklet
• the Formulae Booklet for Further Mathematics B
QP
(MEI)
• a scientific or graphical calculator
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided in the Printed Answer
Booklet. If you need extra space use the lined pages at the end of the Printed Answer
Booklet. The question numbers must be clearly shown.
• Fill in the boxes on the front of the Printed Answer Booklet.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
• Give your final answers to a degree of accuracy that is appropriate to the context.
• Do not send this Question Paper for marking. Keep it in the centre or recycle it.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• This document has 8 pages.
ADVICE
• Read each question carefully before you start your answer.
, OCR is an exempt Charity
Turn over
*1873515560*
,
, 2
1 A discrete random variable, X, has a Poisson distribution with mean 4.
(a) Write down the value of Var (X ). [1]
(b) Find P(X = 3). [1]
(c) Find P(X 2 3). [2]
Another discrete random variable, Y, which is independent of X, has a Poisson distribution with
mean 5.
(d) Find P(X + Y G 9). [2]
2 In an experiment, the speed of an object, v ms -1, at time t seconds, is recorded at intervals of
10 seconds from t = 0 to t = 80.
The summary statistics are as follows.
n = 8, Rt = 280, Rt2 = 14000, Rv = 876.28, Rv2 = 133310.2, Rtv = 43190
A linear function of t is used as a model for v.
(a) By first determining the equation of an appropriate regression line, estimate the value of v
when t = 45. [3]
(b) Comment on the reliability of your estimate in part (a). [1]
(c) Explain why in this scenario it would be inappropriate to use a value of v to estimate a value
of t using any regression line. [1]
Statistics Minor(Y432/01) VERIFIED QP AND MS
Oxford Cambridge and RSA
June 2026 – Afternoon
A Level Further Mathematics B (MEI)
Y432/01 Statistics Minor
Time allowed: 1 hour 15 minutes
You must have:
• the Printed Answer Booklet
• the Formulae Booklet for Further Mathematics B
QP
(MEI)
• a scientific or graphical calculator
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided in the Printed Answer
Booklet. If you need extra space use the lined pages at the end of the Printed Answer
Booklet. The question numbers must be clearly shown.
• Fill in the boxes on the front of the Printed Answer Booklet.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
• Give your final answers to a degree of accuracy that is appropriate to the context.
• Do not send this Question Paper for marking. Keep it in the centre or recycle it.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• This document has 8 pages.
ADVICE
• Read each question carefully before you start your answer.
, OCR is an exempt Charity
Turn over
*1873515560*
,
, 2
1 A discrete random variable, X, has a Poisson distribution with mean 4.
(a) Write down the value of Var (X ). [1]
(b) Find P(X = 3). [1]
(c) Find P(X 2 3). [2]
Another discrete random variable, Y, which is independent of X, has a Poisson distribution with
mean 5.
(d) Find P(X + Y G 9). [2]
2 In an experiment, the speed of an object, v ms -1, at time t seconds, is recorded at intervals of
10 seconds from t = 0 to t = 80.
The summary statistics are as follows.
n = 8, Rt = 280, Rt2 = 14000, Rv = 876.28, Rv2 = 133310.2, Rtv = 43190
A linear function of t is used as a model for v.
(a) By first determining the equation of an appropriate regression line, estimate the value of v
when t = 45. [3]
(b) Comment on the reliability of your estimate in part (a). [1]
(c) Explain why in this scenario it would be inappropriate to use a value of v to estimate a value
of t using any regression line. [1]
