IB Business Management HL 6.1.6 Decision Trees Questions

[0]
The decision tree does not reach a standard described below.

[1-2]
The decision tree is not accurately constructed, and/or the calculations of each option are not presented or accurate. However, there is some evidence of a general understanding of the model.

[3-4]
The principal elements of the decision tree are constructed, but may not be entirely accurate. The calculations of each option are largely correct. Allow up to three mistakes in calculations and/or presentation for [3]. Allow for either two errors in calculation or two errors in presentation [4]. For an accurately constructed decision tree with incorrect calculations, award up to a maximum of [3]. For an accurately constructed decision tree with EMV calculations, but no working [4].

[5-6]
The decision tree is accurately constructed. The calculations of each option are correct and well presented. A key is provided. Workings are shown.

Accept any other relevant limitation.
Candidates do not have to cover all of the applicable issue above. One is sufficient.

Award [1] for a relevant generic limitation identified or described and [1] for any additional explanation in context.
[2] cannot be awarded for the limitation if the response lacks either explanation and / or application.

For example:
For an identification or a description of the limitation with or without application [1].
For explanation of the limitation with no application [1].
For explanation of the limitation and application [2].