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What weather variables do meteoroogists measure when they are preparing to make a weather forecast?
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How did Edwin Hubble measure the distance to the Andromeda Galaxy?
He applied the period-luminosity relation to Cepheid variables.
What landscape characteristic is usually the most difficult to observe?
The rate of erosion. The rate of erosion of a land surface may require millions of years to measure accurately. Approximations of the rate of erosion involve many variables and may contain a significant amount of errors.
What other things in the sky occur in a sequence or cycle?
Well, Binary Stars, and Gamma Ray Bursts may be worth an investigation. As would be the Cepheid Variables, those famous stars that first gave us a yardstick with which to measure the size of the Universe!And have a crack at Henrietta Swan Leavitt while you are at it. A much overlooked scientist.
What two variables are used to classify stars?
The first variable that is used to classify stars is its ionization state which can measure the photosphere's temperature and density. This information is gathered by splitting the light from a star with a prism and observing the resulting spectrum that includes absorption lines. Luminosity is another variable used; it is based on the width of absorption lines.
What instrument is used to measure atmospheres pressure?
A barometer is used to measure atmospheric pressure. It can also measure altitude!
What weather variables do meteorologists measure when they preparing to make a weather forecast?
Air pressure, temperature, wind direction and speed, and also where high and low pressures sit. They also have to know where all the warm, cold, stationary, and occluded fronts are. they both have the air pressure that crashes and makes a hurricane
What type of variables are factors that are measure in an experiment?
dependent variables
Can we measure qualitative variables?
yes
What is the primary purpose of the mean absolute deviation in forcasting?
to measure forecast accuracy.
What type of variables are in experiment?
the only variables in an experiment are the independent variables [the thing in an experiment your going to change. and the dependent variables [the thing in an experiment your going to measure.
What is an input device used to measure variables?
multimeter
What weather variable do meteorologist measure when they are preparing to make a weather forecast?
Air pressure, temperature, wind direction and speed, and also where high and low pressures sit. They also have to know where all the warm, cold, stationary, and occluded fronts are. they both have the air pressure that crashes and makes a hurricane
What is the statistical measure of a relationship between two variables?
corrrelation
A correlation is a numerical measure of the?
relationship between 2 variables
What measure of central tendency applies to categorical variables?
mean
What are variables that the scientist changes in an experiment?
Scientists change the independent variable but measure the dependent variable; other variables are kept constant.
What is the measure of how strongly two variables are related to one another?
correlation
