IB Mathematics Applications & Interpretation (AI) HL Internal Assessment Example

The student's exploration is easy to follow in its broad structure, with a clear beginning, development, and conclusion.

The main investigation stays linked to the research question for much of the work.

The student uses headings, tables, and graphs to help the reader navigate the analysis.

Some parts of the discussion do not stay fully aligned with the data trends the student reports later.

The added Poisson section interrupts the flow because it moves to a different player and a different question.

There is more explanation than necessary in places, which weakens conciseness.

The student uses appropriate statistical terminology such as correlation coefficient, coefficient of determination, expected frequency, and degrees of freedom.

The student includes multiple useful representations, including tables, a scatterplot, and test summaries.

The student's writing is usually understandable and connects results to the tennis context.

Notation is sometimes inconsistent or incorrect, especially in the IQR work and Poisson section.

Some mathematical statements are not clearly matched to the calculations shown.

A few explanations are hard to follow because the labels or symbols are not presented consistently.