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The Normal Distribution

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Question 67

The distribution of the weights of coffee in a jar is normally distributed with a mean of 180 g and a standard deviation of 7.5 g.

Find the probability that the weight of the coffee is:

a.

More than 189 g

[1]
b.

Less than 171 g

[1]
c.

Between 171 g and 189 g

[1]
Markscheme

The Normal Distribution Questions

  1. A Level
  2. /Maths
  3. /The Normal Distribution

616 exam-style questions on Edexcel A Level Maths The Normal Distribution, covering 3.1 The Normal Distribution, 3.2 Finding Probabilities for Normal Distributions, 3.3 The Inverse Normal Distribution Function, 3.4 The Standard Normal Distribution, 3.5 Finding the mean and standard deviation, 3.6 Approximating a Binomial Distribution, and 3.7 Hypothesis Testing with the Normal Distribution. Each one has a worked solution and a mark scheme showing where the marks go.

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