Use discrete probability distributions - calculation checkpoint
A school canteen random variable has \(P(X=0)=0.14\), \(P(X=1)=0.27\), \(P(X=2)=0.33\), and \(P(X=3)=0.26\). Find \(E(X)\). Enter the requested value and choose the interpretation that matches the result.
Worked practice: result and interpretation
Calculate the requested result first, then choose the interpretation that follows from it.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.