We hope that you have already done the homework required for this activity. See the Student Handbook for the instructions.
Look at the image below, it shows observations for 5 objects.![](/media/1/8/2/b652c13523d70f307a59f990a53df14afeffdbb6f546053d3593030554cb4.jpg)
[Contributed by administrator on 15. März 2018 15:10:53]