IB skill practice

Calculate expected monetary value

Use outcome values and probabilities to calculate an expected payoff.

Paper 1, Paper 2 5 marks Difficulty 3

Calculate expected monetary value - interpretation check

A school athletics dataset option pays 46 if successful and -14 otherwise. The success probability is 0.39. Calculate the expected monetary value. 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.