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2.4 Statistical Distributions

2.4 Statistical Distributions

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Question 23

The volume of paint in a large container is normally distributed with a mean of 2500 ml and a standard deviation of 20 ml.

Find the probability that the volume of paint is:

a.

More than 2525 ml

[1]
b.

Less than 2475 ml

[1]
c.

Between 2475 ml and 2525 ml

[1]
Markscheme

2.4 Statistical Distributions Questions

  1. A Level
  2. /Maths
  3. /2.4 Statistical Distributions

390 exam-style questions on OCR A Level Maths 2.4 Statistical Distributions, covering 2.4.1 Discrete probability distributions, 2.4.2 Binomial distribution as a model, 2.4.3 Calculating binomial probabilities, 2.4.4 Mean and variance of the binomial (A-level only), 2.4.5 Normal distribution as a model (A-level only), 2.4.6 Probabilities using the normal distribution (A-level only), 2.4.7 Links to histograms, mean and standard deviation (A-level only), and 2.4.8 Selecting an appropriate distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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