Middle value separating the greater and lesser halves of a data set 1, 2, 2, 3, 4, 7, 9 3 Most frequent value in a data set 1, 2, 2, 3, 4, 7, 9 2 One can find the median using the Stem-and-Leaf Plot. The median is used primarily for skewed distributions, which it summarizes differently from the arithmetic mean.
Melting The physical process of a solid becoming a liquid. For water, this process requires approximately 80 calories of heat energy for each gram converted. A scale for rating the power of an earthquake. Mercator Projection Map projection system that presents true compass direction.
Distortion is manifested in terms of area. Area distortion makes continents in the middle and high latitudes seem larger than they should be.
Specifically designed for nautical navigation. Mercury Barometer Type of barometer that measures changes in atmospheric pressure by the height of a column of mercury in a U-shaped tube which has one end sealed and the other end immersed in an open container of mercury.
The force of the pressure exerted by the atmosphere on the mercury in the open container pushes mercury up the other end of the tube. The height of this level is then used as a measure of atmospheric pressure relative to the surface level of the mercury in the container.
Meridian A circular arc that meets at the poles and connects all places of the same longitude. Meridional Movement of wind or ocean waters in a direction that is roughly perpendicular to the lines of latitude. Transport of atmospheric and oceanic energy from the equator to the poles.
Mesa A flat topped hill that rises sharply above the surrounding landscape. The top of this hill is usually capped by a rock formation that is more resistant to weathering and erosion.
Mesocyclone A cylinder of cyclonically flowing air that form vertically in a severe thunderstorm. They measure about 3 to 10 kilometers across. Mesopause Thin boundary layer found between the mesosphere and the thermosphere.
It is usually found at an average altitude of 80 kilometers. Coldest temperatures in the atmosphere are found at the mesopause.
Plants that have moderate water requirements. Mesoscale Convective Complex A cluster of thunderstorms covering an area ofkilometers or more. Convective circulation within this system encourages the growth of new thunderstorms for up to 18 hours.
Mesosphere Atmospheric layer found between the stratosphere and the thermosphere. Usually located at an average altitude of 50 to 80 kilometers above the Earth's surface. Air temperature within the mesosphere decreases with increasing altitude.
Lake with a moderate nutrient supply. Also see eutrophic lake and oligotrophic lake. Geologic era that occurred from to 65 million years ago. Describes all of the enzymatic reactions performed by the cells of an organism.
Metamorphic Rock A rock that forms from the recrystallization of igneoussedimentary or other metamorphic rocks through pressure increase, temperature rise, or chemical alteration.
Process that creates metamorphic rocks. Metasomatic Metamorphism Form of metamorphism that causes the chemical replacement of elements in rock minerals when gases and liquids permeate into bedrock.
Meteor A body of matter that enters the Earth's atmosphere from space. While traveling through the atmosphere, these objects begin to burn because of friction and are sometimes seen as luminous streaks in the sky by ground observers.
Many of these objects burn up completely and never reach the Earth's surface. The scientific study of the atmosphere and its associated phenomena. Methane Methane is very strong greenhouse gas found in the atmosphere.
The primary sources for the additional methane added to the atmosphere in order of importance are: Chemical formula for methane is CH4. Mica Silicate mineral that exhibits a platy crystal structure and perfect cleavage.
Common forms of mica are biotite and muscovite. Nutritional element required by an organism in relatively very small quantities.A measurement of data that indicates where the middle of the information lies.
There are three common measures of central tendency including the mean, the median, and the mode.
A. Absolute frequency. The absolute frequency describes the number of times a particular value for a variable (data item) has been observed to occur.. See: Describing Frequencies Administrative data.
Administrative data are collected as part of the day to day processes and record keeping of organisations.. See: Data Sources B.
Bar chart. A bar chart is a type of graph in which each column. The mean (often called the average) is most likely the measure of central tendency that you are most familiar with, but there are others, such as the median and the mode. The mean, median and mode are all valid measures of central tendency, but under different conditions, some measures of central tendency become more appropriate to use than .
Mean, median and mode are numbers that represent a whole set of data or information. Mean, median and mode are together called the measures of central tendency.
The median is the value separating the higher half from the lower half of a data sample (a population or a probability distribution).For a data set, it may be thought.
Measures of Central Tendency: Mean, Median, and Mode Introduction: Connecting Your Learning In real-world applications, you can use tables and graphs of various kinds to show information and to extract information from data that .