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A-Level Pearson Edexcel Level 3 GCE AL Further Mathematics (9FM0) Paper 4B Further Statistics 2 Summer Exam Question paper (AUTHENTIC MARKING SCHEME ATTACHED)£7.49
A-Level Pearson Edexcel Level 3 GCE AL Further Mathematics (9FM0) Paper 4B Further Statistics 2 Summer Exam Question paper (AUTHENTIC MARKING SCHEME ATTACHED)
A-Level Pearson Edexcel Level 3 GCE
AL Further Mathematics (9FM0)
Paper 4B Further Statistics 2 Summer Exam Question paper
(AUTHENTIC MARKING SCHEME ATTACHED)
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
reference 9FM0/4B
Paper
Time 1 hour 30 minutes
Further Mathematics
Advanced
PAPER 4B: Further Statistics 2
You must have: Total Marks
Mathematical Formulae and Statistical Tables (Green), calculator
A-Level Pearson Edexcel Level 3 GCE
AL Further Mathematics (9FM0)
Paper 4B Further Statistics 2 Summer
Exam Question paper
(AUTHENTIC MARKING SCHEME
ATTACHED)
,1. Kwame is investigating a possible relationship between average March temperature,
t °C, and tea yield, y kg/hectare, for tea grown in a particular location.
He uses 30 years of past data to produce the following summary statistics for a linear
regression model, with tea yield as the dependent variable.
Residual Sum of Squares (RSS) = 1 666 567 Stt = 52.0 Syy = 1 774 155
least squares regression line: gradient = 45.5 y-intercept = 2080
(a) Use the regression model to predict the tea yield for an average March temperature
of 20 °C
(1)
He also produces the following residual plot for the data.
Kwame also collects data on total March rainfall, w mm, for each of these 30 years.
For a linear regression model of w on t the following summary statistic is found.
Residual Sum of Squares (RSS) = 86 754
Kwame concludes that since this model has a smaller RSS, there must be a stronger
linear relationship between w and t than between y and t (where RSS = 1 666 567)
(e) State, giving a reason, whether or not you agree with the reasoning that led to
Kwame’s conclusion.
(1)
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*P72096A0424*
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