This fact sheet from the U.S. Environmental Protection Agency provides an overview of how climate change affects ecosystems. Keywords EPA, climate change, global warming, ecosystem, ecological, biodiversity, ocean, forest, habitat, invasive, species, migration, bird, life cycle, lifecycle, events, pattern
We say the data is normally distributed: The Normal Distribution has: 1  mean = median = mode. 2  symmetry about the center. 3  50% of values less than the mean. 4  and 50% greater than the mean.
A graph that represents the density function of the Normal probability distribution is also known as a Normal Curve or a Bell Curve (see Figure 1 below). The Normal distribution requires two parameters, the mean and the standard deviation.