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Statistical Distributions

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Question 57

A discrete random variable X X\,X has the probability function:

xxx0123
P(X=x)P(X=x)P(X=x)0.2aaa0.30.25
a.

Find the value of aaa

[1]
b.

Find P(X>1.2)P(X > 1.2)P(X>1.2)

[1]
c(i).

Find F(1)F(1)F(1)

[1]
c(ii).

Find F(2)F(2)F(2)

[1]
c(iii).

Construct a table for the cumulative distribution F(x)F(x)F(x)

[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.

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