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Edexcel GCSE
Statistics
Paper 1H Higher Tier
Monday 27 June 2011 – Morning Time: 2 hours
Paper Reference
5ST1H/01
Total Marks
You must have: Ruler graduated in centimetres and millimetres, protractor, pen HB pencil, eraser, electronic calculator.
Instructions
black ink or • Usein the boxesball-point pen. page with your name, at the top of this • Fill number and candidate number. centre Answer all questions. • Answer the questions in the spaces provided • – there may be more space than you need.
Information
total for • The marksmarkeachthis paper is 100. in brackets The for question are shown • – use this as a guide as to how much time to spend on each question. an • Questions labelled with willasterisk (*) are ones where the quality of your written communication be assessed – you should take particular care on these questions with your spelling, punctuation and grammar, as well as the clarity of expression.
Advice
Read carefully • Keep each questiontime. before you start to answer it. an eye on the • Try to answer every question. • Check your answers if you have time at the end. •
Turn over
P39092A
©2011 Edexcel Limited.
*P39092A0128*
6/6/6/6/6/6
Higher Tier Formulae You must not write on this page. Anything you write on this page will gain NO credit. fx f
Mean of a frequency distribution
Mean of a grouped frequency distribution
fx f
, where x is the mid-interval value.
Variance
( x x )2 n x2 n n x
2
Standard deviation (set of numbers)
or
( x x )2 n where x is the mean set of values.
Standard deviation (discrete frequency distribution)
2 ⎡ ∑ fx 2 − ⎛ ∑ fx ⎞ ⎤ ⎢ ⎜ ⎟ ⎥ ⎢ ∑ f ⎜ ∑f ⎟ ⎥ ⎝ ⎠ ⎦ ⎣
or
f ( x x )2 f 6 d2
Spearman’s Rank Correlation Coefficient
1
n(n 2 1)
2
*P39092A0228*
Answer ALL the questions. You must write down all stages of your working. 1 A national newspaper...