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Statistical Distributions

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Question 80

The probability of Harry being late for school is 0.1. Over a term of 30 days:

a.

The probability that Harry is late exactly n n\,n times is 0.141 to 3 significant figures. Find the value of nnn.

[1]
b.

The probability that Harry is late more than n n\,n times is 0.175 to 3 significant figures. Find the value of nnn.

[1]
c.

The probability that Harry is late less than n n\,n times is 0.411 to 3 significant figures. Find the value of nnn.

[1]
Markscheme

Statistical Distributions Questions

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

215 exam-style questions on Edexcel A Level Maths Statistical Distributions, covering 6.1 Probability Distributions, 6.2 The Binomial Distribution, and 6.3 Cumulative Probabilities. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank