Sign in to jmaths to print this page or save it as a PDF: jmaths-8ce638778fd6.herokuapp.com/maths/ai-hl/markov-chains-transition-matrices/ahl-7-2/problems/

jmaths

IB Mathematics: Applications and Interpretation HL · AHL 7: Markov Chains & Transition Matrices · AHL 7.2

Powers of the transition matrix and state vectors Problem set A Answers

Skills

    1. (a) 0.568
    2. (b) 0.610
  1. 0.336

    1. (a) 0.413
    2. (b) 0.238
  2. \(\begin{pmatrix} 0.593 \\ 0.407 \end{pmatrix}\)

  3. \(\begin{pmatrix} 0.272 \\ 0.359 \\ 0.369 \end{pmatrix}\)

    1. (a) Regular. The smallest power is 2.
    2. (b) Not regular. The first and third states are absorbing, so zeros stay in every power.
    3. (c) Not regular. The chain goes round state 1, 2, 3, 1, … and \(\mathbf{T}^3\) is the identity matrix, so every power has zeros.

In context

  1. Atlas 32.9%, Bolt 42.9%, Core 24.3%

  2. 0.242

  3. morning 873, evening 327

    1. (a) 0.096
    2. (b) 0.312

Stretch

  1. n = 7

    1. (a) 0.2952
    2. (b) \(\mathbf{T}^2\) entry in column A, row C is 0.2952

jmaths.xyz · AI HL · AHL 7.2 Powers of the transition matrix and initial state vectors