The variance is the mean squared deviation of all the values from the mean.Select one:TrueFalse

The variance is:a. The square root of the sum of squared deviations from the meanb. The average of squared deviations from the meanc. The average of absolute deviations from the meand. The square of the standard deviation

Fill in the Blank QuestionFill in the blank question.A variance is the difference between the actual quantity of input used and the standard quantity of input that should have been used.

Fill in the Blank QuestionFill in the blank question.A variance is the difference between the actual price per unit and the standard price per unit.

How is the standard deviation related to the variance of a data set? It is the square of the variance It is the square root of the variance It is half the variance It is twice the variance

Which of the following is true about variance?Group of answer choicesIt measures the uncertainty of a random variableHigher variance implies low uncertainty.It is the square root of a random variable's standard deviationIt is the weighted average of all possible outcomes.