Edexcel S2 2003 January — Question 1

Exam BoardEdexcel
ModuleS2 (Statistics 2)
Year2003
SessionJanuary
TopicContinuous Uniform Random Variables
TypeMeasurement error modeling
  1. An engineer measures, to the nearest cm , the lengths of metal rods.
    1. Suggest a suitable model to represent the difference between the true lengths and the measured lengths.
    2. Find the probability that for a randomly chosen rod the measured length will be within 0.2 cm of the true length.
    Two rods are chosen at random.
  2. Find the probability that for both rods the measured lengths will be within 0.2 cm of their true lengths.
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