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2 Statistics

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Question 121

The mass W W\,W g of coffee in a jar is modelled by W∼N(200,4.22)W\sim N(200,4.2^2)W∼N(200,4.22).

a.

Find P(W>205)P(W>205)P(W>205).

[1]
b.

Find P(195<W<205)P(195<W<205)P(195<W<205).

[1]
c.

State one feature of the context that is consistent with using a continuous distribution.

[1]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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