Parallax error when reading volumes. Fix: Ensure eyes are level with the bottom of the meniscus. 4. High-Yield Exam Day Tips
| | Purpose | When to use | |---|---|---| | Student’s t-test | Compare means of two groups | Normally distributed continuous data | | Chi-squared test (χ²) | Test association between categorical variables | Count data in categories | | Spearman’s rank correlation | Test correlation between two variables | Non-parametric, rank data | biology 9700 practical notes
Ensure the tissue layers match the proportions seen under the microscope. Parallax error when reading volumes
Paper 5 tests your ability to think like a scientist without setting foot in a lab. It is divided into planning an experiment and analyzing data. High-Yield Exam Day Tips | | Purpose |
: A poorly constructed table loses easy marks. Your results table must have:
The practical exam is not just a test of memory; it is a test of character . It tests your ability to remain calm when your titration turns pink too early, or when your microscope slide looks like a modern art painting rather than a root tip squash.