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Statistical Distributions

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Question 94

The random variable X X\,X has the following probability distribution.

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P(X=x)P(X=x)P(X=x)kkkk2\displaystyle \frac{k}{2}2k​k3\displaystyle \frac{k}{3}3k​k4\displaystyle \frac{k}{4}4k​k6\displaystyle \frac{k}{6}6k​

where k k\,k is a constant.

Find the value of kkk.

[3]
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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