Organism Abundance
Biology: AQA GCSE Higher, topic 7.2.6
Organism Abundance
When discussing organism abundance, the following terms may be used:

Mean
- The arithmetic mean is the average value of a series of numbers.
- The mean is calculated by adding up all the values and then dividing by the number of recordings that have been made.

Mode
- The mode is the most common value in a series.

Median
- The median is the middle value in a numerically ordered series.
Test yourself on Organism Abundance
What is the mode of the numbers 4, 4, 7, 9, and 12?
What is the mean of the numbers 6, 8, and 10?
What is the median of the numbers 14, 3, and 7?
How is the mean of a series of numbers calculated?
What term describes the most common value in a series of numbers?