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2 Unit AS 2: Applied Mathematics

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Question 139

In a histogram, the classes 0<x≤50<x\leq50<x≤5, 5<x≤15 5<x\leq15\,5<x≤15 and 15<x≤25 15<x\leq25\,15<x≤25 have frequency densities 6, k k\,k and 2 respectively. The total frequency is 90, and 50 observations lie in the first two classes.

a.

Find kkk.

[2]
b.

Determine whether the stated total frequency is consistent with the other information.

[1]
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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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