IB skill practice

Evaluate biological investigation design and data

Paper 1, Paper 2 5 marks Difficulty 5

Calculate mean from repeats

A biological investigation in a Melbourne DP Biology practical records two repeat counts, \(15\) and \(19\). Calculate the mean count. Enter the answer and choose the interpretation that best matches the biological evidence.

Worked practice: biological evidence and answer

Use the labelled biological evidence first, then connect it to the final answer.