Edexcel S1 2009 June — Question 3

Exam BoardEdexcel
ModuleS1 (Statistics 1)
Year2009
SessionJune
TopicData representation
TypeCalculate frequency density from frequency
3. The variable \(x\) was measured to the nearest whole number. Forty observations are given in the table below.
\(x\)\(10 - 15\)\(16 - 18\)\(19 -\)
Frequency15916
A histogram was drawn and the bar representing the \(10 - 15\) class has a width of 2 cm and a height of 5 cm . For the \(16 - 18\) class find
  1. the width,
  2. the height
    of the bar representing this class.
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