The bell then slopes down to each side; one side represents scores that are lower than the average, and the other side represents scores that are above the average. Mean: The mean is the average score. The average is calculated by adding all of the scores together, then dividing by the total number of scores. Standard Deviation: This is a measure of variability in a population. A low standard deviation means that most of the data points are very close to the same value.
What are some examples of biodegradable? Some examples of biodegradable include paper, cotton rag, banana peels and many more. These are products that are broken down by micro-organisms found in nature which mean â¦ s they do not harm the environment.
Biodegradable substances are those pollutants which are decomposed or degraded by the action of microorganism. These waste products show quite rapid degradation. Generally these substances do not accumulate in the environment. These pollutants can be used to produce useful products like manure, compost and biogas.iodegradable pollutants are those that can be broken down into simple elements and substances by the action of bacteria and other decomposers. These pollutants are degraded slowly by microbes.