Question

What is Dummy variable and explain?​

Answer 1

Answer:

A dummy variable is a numerical variable used in regression analysis to represent subgroups of the sample in your study. In research design, a dummy variable is often used to distinguish different treatment groups.

Answer 2

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$\huge\pink{\boxed{\green{\mathfrak{\fcolorbox{red}{aqua}{\underline{\pink{Dummy \: Variable}}}}}}}$

A dummy variable is a numerical variable used in regression analysis to represent subgroups of the sample in your study. In research design, a dummy variable is often used to distinguish different treatment groups.

${\pink{\bold{\underline{Explaination:}}}}$

A dummy variable is a variable that takes values of 0 and 1, where the values indicate the presence or absence of something (e.g., a 0 may indicate a placebo and 1 may indicate a drug). Where a categorical variable has more than two categories, it can be represented by a set of dummy variables, with one variable for each category. Numeric variables can also be dummy coded to explore nonlinear effects. Dummy variables are also known as indicator variables, design variables, contrasts, one-hot coding, and binary basis variables.

$\huge\purple{ hope \: it \: helps}$