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Statistical Distributions

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Question 105

A fair 4 sided spinner has sides numbered 1, 2, 3 and 4.

The spinner is spun 20 times. The random variable X X\,X represents the number of times the spinner lands on 2. Find the probability that the spinner lands on 2 exactly 5 times.

[2]
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.

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