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When the ratio of two variables quantities varies the relationship is called a direct variation?
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When two quantities form a direct variation what is it called?
A direct variation (!) or direct reelationship.
A tentative descriptive statement of the relationship between the variables is called?
A tentative descriptive statement of the relationship between the variables is called hypothesis
An equation that describes a known relationship among quantities is called a?
Formula
What is a relationship between two quantities called input and output?
Function
How do you explain the analysis of variance assuming that your audience has not had a statistic class before?
The measurement of any statistical variable will vary from one observation to another. Some of this variation is systematic - due to variations in some other variable that "explains" these variations. There may be several such explanatory variables - acting in isolation or in conjunction with one another. Finally, there will be a residual variation which cannot be explained by any of these "explanatory" variables. The statistical technique called analysis of variance first calculates the total variation in the observations. The next step is to calculate what proportion of that variation can be "explained" by other variables, and finding the residual variation. A comparison of the explained variation with the residual variation is an indicator of whether or not the amount explained is statistically significant. The word "explain" is in quotes because there is not always a causal relationship. The causality may go in the opposite direction. Or the variables may be related to another variable that is not part of the analysis.
What is a relationship between two quantities in which the ratio of one quantity to the other is constant?
It is called direct variation.
What is a relationship between two quantities in which the ratio of one quantity to other quantity is constant?
It is called direct variation.
When two quantities form a direct variation what is it called?
A direct variation (!) or direct reelationship.
Quantities that have different values at different times are called?
Variables or data
A tentative descriptive statement of the relationship between the variables is called?
A tentative descriptive statement of the relationship between the variables is called hypothesis
Why are function notation important?
A function is a relationship between quantities (variables) that occurs when the value of one of the quantities can be given uniquely by specified values of the other quantities. The variables involved can be either independent or dependent. The values of certain variables are fixed while others are allowed to change. The fixed variables are called the independent variables, and the dependent variables are those that change in response to the given value of the independent variable. A function therefore relates dependent variables to independent variables, the only restriction being that each value of the dependent variable is given uniquely by one, and only one, value for each of the independent variables.
What is the simplified proportional relationship called?
A proportional relationship between two quantities is one in which the two quantities called the unit rate, the rate of change, or the constant of proportionality.
The relationship between two quantities that increase or decrease together is called what?
The two quantities are porportional.
What describes a relationship between several variables in an algebraic equation?
an algebraic equation that describes a relationship between several variables is called a?
What is the quantity of two quantities in which the ratio of one quantitie to the other quantity is constant?
It is called direct variation.
An equation that describes a known relationship among quantities is called a?
Formula
What is a relationship between two quantities called input and output?
Function
