IB skill practice

Find two-step Markov probabilities

Use transition probabilities twice to find a two-step probability.

Paper 1, Paper 2 5 marks Difficulty 5

Find two-step Markov probabilities - exam scenario

A two-state Markov solar installer has \(P(A o A)=0.67\) and \(P(B o A)=0.21\). Starting in A, find the probability of being in A after two steps. 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.