Edexcel FS1 2024 June — Question 1

Exam BoardEdexcel
ModuleFS1 (Further Statistics 1)
Year2024
SessionJune
TopicDiscrete Random Variables
TypeExpectation and variance from distribution
  1. The discrete random variable \(X\) has the following probability distribution
\(x\)- 10135
\(\mathrm { P } ( X = x )\)0.20.10.20.250.25
  1. Find \(\operatorname { Var } ( X )\)
  2. Find \(\operatorname { Var } \left( X ^ { 2 } \right)\)
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