Edexcel FS2 2024 June — Question 4

Exam BoardEdexcel
ModuleFS2 (Further Statistics 2)
Year2024
SessionJune
TopicContinuous Uniform Random Variables
TypeMaximum or minimum of uniforms

  1. The random variable \(G\) has a continuous uniform distribution over the interval \([ - 3,15 ]\)
    1. Calculate \(\mathrm { P } ( G > 12 )\)
    The random variable \(H\) has a continuous uniform distribution over the interval [2, w] The random variables \(G\) and \(H\) are independent and \(\mathrm { E } ( H ) = 10\)
  2. Show that the probability that \(G\) and \(H\) are both greater than 12 is \(\frac { 1 } { 16 }\) The random variable \(A\) is the area on a coordinate grid bounded by $$\begin{aligned} & y = - 3
    & y = - 4 | x | + k \end{aligned}$$ where \(k\) is a value from the continuous uniform distribution over the interval [5,10]
  3. Calculate the expected value of \(A\)