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2.4 Statistical distributions

2.4 Statistical distributions

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Question 4

A random variable Z Z\,Z has probability function P(Z=z)=k(z+1)P(Z=z)=k(z+1)P(Z=z)=k(z+1) for z=0,1,2,3,4z=0,1,2,3,4z=0,1,2,3,4.

a.

Find kkk.

[2]
b.

Find P(Z≥3)P(Z\geq3)P(Z≥3).

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c.

Construct a table for F(z)=P(Z≤z)F(z)=P(Z\leq z)F(z)=P(Z≤z) at z=0,1,2,3,4z=0,1,2,3,4z=0,1,2,3,4.

[2]
Markscheme

2.4 Statistical distributions Questions

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

47 exam-style questions on WJEC A Level Maths 2.4 Statistical distributions, covering 2.4.1 Statistical distributions, 2.4.2 Statistical distributions, and 2.4.3 Statistical distributions. Each one has a worked solution and a mark scheme showing where the marks go.

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