In the 1940s, Stanley Smith Stevens introduced four scales of measurement: nominal, ordinal, interval, and ratio. These are still widely used today as a way to describe the characteristics of a variable. Knowing
What is used to change variables from nominal to real? What are the "real" and " monetary" variables? What are some factors that affect variable costs? What is a dependent variable and what are the other names given to these variables? Wh...
sex is a dichotomous variable as it contains precisely 2 distinct values. married is not a dichotomous variable: it contains 3 distinct values. It would be dichotomous if we just distinguished between currently married and currently unmarried. q1 is a dichotomous variable: since empty cells (missin...
What is a Variable? The definition of a variable changes depending on the context. Typically, a letter represents them, and it stands in for a numerical value. In algebra, a variable represents an unknown value that you need to find. For mathematical functions and equations, you input their ...
What type of variable is gender? For example, gender isa nominal variablethat can take responses male/female, which are the categories the nominal variable is divided into. How do you control extraneous variables? One way to control extraneous variables iswith random sampling. Random sampling does...
The amount of calories consumed is the independent variable, and the height is the dependent variable. Of course, the amount of calories can also be related to other variables, for example it can be derived from a simple rule of the socioeconomic status of the child's parents. But within ...
What is type of data? Introduction to Data Types.Categorical Data(Nominal, Ordinal) Numerical Data (Discrete, Continuous, Interval, Ratio) Is string is a data type? A string isgenerally considered a data typeand is often implemented as an array data structure of bytes (or words) that stores...
CHAID(Chi-squared Automatic Interaction Detection) is used for categorical variables and constructs trees based on chi-squared tests to determine the most significant associations between the predictor variables and the target variable. It can handle both nominal and ordinal categorical variables. ...
To calculate APY, the formula is: APY = ( 1 +r⁄n)n– 1 The “r” variable is the annual interest rate in decimal form (so 5 percent would be 0.05). The “n” variable is the number of compounding periods per year. As an example, suppose you have a savings account with a 5...
there is a possibility of multiple modal responses. For example, if cashews and whipped cream both selected at a similar number of times, then the responses from multiple choice as mentioned in the ice cream example is considered by the researchers to generate a metric variable that is used as...