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Can the variance of a normally distributed random variable be negative? - Answers

No. The variance of any distribution is the sum of the squares of the deviation from the mean. Since the square of the deviation is essentially the square of the absolute value of the deviation, that means the variance is always positive, be the distribution normal, poisson, or other.



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Can the variance of a normally distributed random variable be negative? - Answers

https://math.answers.com/math-and-arithmetic/Can_the_variance_of_a_normally_distributed_random_variable_be_negative

No. The variance of any distribution is the sum of the squares of the deviation from the mean. Since the square of the deviation is essentially the square of the absolute value of the deviation, that means the variance is always positive, be the distribution normal, poisson, or other.



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https://math.answers.com/math-and-arithmetic/Can_the_variance_of_a_normally_distributed_random_variable_be_negative

Can the variance of a normally distributed random variable be negative? - Answers

No. The variance of any distribution is the sum of the squares of the deviation from the mean. Since the square of the deviation is essentially the square of the absolute value of the deviation, that means the variance is always positive, be the distribution normal, poisson, or other.

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      No. The variance of any distribution is the sum of the squares of the deviation from the mean. Since the square of the deviation is essentially the square of the absolute value of the deviation, that means the variance is always positive, be the distribution normal, poisson, or other.

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