Examlex
What is the recommended minimum amount of time for washing hands with warm water and soap before preparing or eating food?
Nominal Variable
A type of variable that represents categories with no intrinsic ordering or rank among them.
Indicator Variables
Binary variables used in regression analysis, taking the value of either 0 or 1 to denote the absence or presence of a categorical effect.
Analysis of Variance
A statistical method used to compare the means of three or more samples to determine if at least one of them is significantly different from the others.
Dummy Variable
A binary variable used in regression analyses to represent categories of a nominal variable.
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