# Recent questions tagged variable

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Is zip code a categorical variable?
Is zip code a categorical variable?Is zip code a categorical variable? ...
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What do you mean by categorical data?
What do you mean by categorical data?What do you mean by categorical data? ...
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Consider the differential equation $\left(2 x y-y^{n}\right) d x+x^{2} d y=0$.
Consider the differential equation $\left(2 x y-y^{n}\right) d x+x^{2} d y=0$.Consider the differential equation $\left(2 x y-y^{n}\right) d x+x^{2} d y=0$. Which of the following statements is NOT TRUE? &nbsp; (A) For $n=1$ t ...
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What does "controlling for a variable" mean?
What does "controlling for a variable" mean?What does &quot;controlling for a variable&quot; mean? ...
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What is a control variable?
What is a control variable?What is a control variable? ...
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What is the difference between confounding variables, independent variables and dependent variables?
What is the difference between confounding variables, independent variables and dependent variables?What is the difference between confounding variables, independent variables and dependent variables? ...
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What is a confounding variable?
What is a confounding variable?What is a confounding variable? ...
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What is the difference between the correlation coefficient and the slope of the line?
What is the difference between the correlation coefficient and the slope of the line?What is the difference between the correlation coefficient and the slope of the line? ...
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What do the sign and value of the correlation coefficient tell us?
What do the sign and value of the correlation coefficient tell us?What do the sign and value of the correlation coefficient tell us? ...
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What is a correlation coefficient?
What is a correlation coefficient?What is a correlation coefficient? ...
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What is correlation?
What is correlation?What is correlation? ...
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What does a correlation coefficient of zero mean?
What does a correlation coefficient of zero mean?What does a correlation coefficient of zero mean? ...
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What are independent / dependent variables?
What are independent / dependent variables?What are independent / dependent variables? ...
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What is a coefficient?
What is a coefficient?What is a coefficient? ...
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Are there lots of integer solutions for the mysterious equation, or just a few? $n! + n = n^n$
Are there lots of integer solutions for the mysterious equation, or just a few? $n! + n = n^n$Are there lots of integer solutions for the mysterious equation below, or just a few? \ n! + n = n^n\ ...
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What is a hypothesis in statistics?
What is a hypothesis in statistics?What is a hypothesis in statistics? ...
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Give an example of a continuous random variable
Give an example of a continuous random variableGive an example of a continuous random variable ...
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When is X a continuous random variable?
When is X a continuous random variable?When is X a continuous random variable? ...
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When is a random variable X called discrete?
When is a random variable X called discrete?When is a random variable X called discrete? ...
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What are independent random variable in statistics?
What are independent random variable in statistics?What are independent random variable in statistics? ...
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What is a random variable in statistics?
What is a random variable in statistics?What is a random variable in statistics? ...
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Prove that if $X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(X)=E\left(X^{2}\right)-E(X)$
Prove that if $X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(X)=E\left(X^{2}\right)-E(X)$Prove that if $X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(X)=E\left(X^{2}\right)-E(X)$ ...
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Prove that if $X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(c X)=c^{2} \operatorname{Var}(X)$
Prove that if $X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(c X)=c^{2} \operatorname{Var}(X)$Prove that if $X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(c X)=c^{2} \operatorname{Var} ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 Prove that if \(X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(X) \geq 0$.
Prove that if $X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(X) \geq 0$.Prove that if $X$ is a random variable with mean $E X$ and $c \in$ is $a$ real number, then $\operatorname{Var}(X) \geq 0$. ...
How do you calculate the Coefficient of Variation and if the $\mathrm{CV}$ is lower what does that mean?
How do you calculate the Coefficient of Variation and if the $\mathrm{CV}$ is lower what does that mean?How do you calculate the Coefficient of Variation and if the $\mathrm{CV}$ is lower what does that mean? ...