# Vobeft7Bbt

## Vobeft7Bbt

Surname Other names

Centre Number

Candidate Number

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.

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

*P39092A0128*

6/6/6/6/6/6

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...