'Seaweed' is a general term used to describe plants and algae that grow in waterways such as the ocean, and rivers, lakes and streams. In this slideshow, you can learn basic facts about seaweed, including how it is classified, what it looks like, where it is found and why it is useful.1 of 8 Show All.Seaweed' is a general term used to describe plants and algae that grow in waterways such as the ocean, and rivers, lakes and streams. In this slideshow, you can learn basic facts about seaweed, including how it is classified, what it looks like, where it is found and why it is useful. 1 of 8 Show All.
or symmetric. 1. characterized by or exhibiting symmetry; well-proportioned, as a body or whole; regular in form or arrangement of corresponding parts. 2. Geometry. noting two points in a plane such that the line segment joining the points is bisected by an axis: Points (1, 1) and (1, â1) are symmetrical with respect to the x-axis.
A further characterization of the data includes skewness and kurtosis. Skewness is a measure of symmetry, or more precisely, the lack of symmetry. A distribution, or data set, is symmetric if it looks the same to the left and right of the center point. Kurtosis is a measure of whether the data are peaked or flat relative to a normal distribution. That is, data sets with high kurtosis tend to have a distinct peak near the mean, decline rather rapidly, and have heavy tails. Data sets with low kurtosis tend to have a flat top near the mean rather than a sharp peak.