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2 Unit AS 2: Applied Mathematics

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Question 81

A histogram has frequency densities 1.5, 3 and 0.8 over the intervals 0<x≤40<x\leq40<x≤4, 4<x≤10 4<x\leq10\,4<x≤10 and 10<x≤20 10<x\leq20\,10<x≤20 respectively.

a.

Find the total frequency.

[2]
b.

Estimate P(X>7)P(X>7)P(X>7) for a randomly selected observation.

[3]
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2 Unit AS 2: Applied Mathematics Questions

  1. A Level
  2. /Maths
  3. /2 Unit AS 2: Applied Mathematics

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