Skip to content

Course home

Sign up

Representations of Data

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115
Question 99

100 students completed a puzzle, their times are summarised by summary data and the box plot.

Box plot of puzzle completion times

mean=4.10standard deviation=1.90 \text{mean} = 4.10 \quad \text{standard deviation} = 1.90 mean=4.10standard deviation=1.90
a.

Write down the range of the times.

[1]
b.

Write down the interquartile range of the times.

[1]
c.

Calculate ∑x \sum x\,∑x and ∑x2 \sum x^2\,∑x2 for the times.

[3]
d.

State, giving a reason, whether you would recommend using the mean and standard deviation or the median and interquartile range to describe these data.

[2]
Markscheme

Representations of Data Questions

  1. A Level
  2. /Maths
  3. /Representations of Data

160 exam-style questions on Edexcel A Level Maths Representations of Data, covering 3.1 Outliers, 3.2 Box Plots, 3.3 Cumulative Frequency, 3.4 Histograms, and 3.5 Comparing Data. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank