Question: How do you calculate the variance of a continuous random variable? Group of answer choices By finding the difference between the maximum and minimum values

How do you calculate the variance of a continuous random variable? Group of answer choices By finding the difference between the maximum and minimum values of the variable. By integrating the square of the random variable times the PDF over all possible values. By calculating the area under the PDF curve. By subtracting the mean from each value and dividing by the total number of values

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