Consider the following statements:<br>I. Mean and variance have the same unit of measurement.<br>II. Mean deviation and standard deviation have the same unit of measurement.<br>Which of the statements given above is/are correct?

Explanation

Variance is defined as the average of the squared deviations from the mean, so its unit of measurement is the square of the original unit (Statement I is incorrect). Mean deviation and standard deviation both measure dispersion linearly and carry the exact same unit as the original observations (Statement II is correct).

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