No. Neither the standard deviation nor the variance can ever be negative.
Yes
No. Variance is always positive and so the sum of variances must also be positive.
what is meant by a negative binomial distribution what is meant by a negative binomial distribution
The variance is always positive. The variance is not directly related to the sign (nor magnitude) of the mean.
Negative price variance is when the cost is less than budgeted. Volume variance is a variance in the volume produce.
Since Variance is the average of the squared distanced from the mean, Variance must be a non negative number.
No. Neither the standard deviation nor the variance can ever be negative.
Variance cannot be negative.
No.
hhu
Yes
A variance is the difference between the projected budget and the actual performance for a particular account. A negative variance means that the budgeted amount was greater than the actual amount spent. A positive variance means that the budgeted amount was less than the actual amount spent. Note there is some debate over whether a negative variance means an underrun or an overrun. The Project Management Institute, however, endorses the accepted convention that a negative variance is a bad thing, and a positive variance a good thing.
Yes, but negative variance indicates environmental variance (i.e., within-family or within-strain) is unusually high, possibly due to poor experimental design. Narrow sense heritability (h2, not H2) = (phenotypic variance - environmental variance) / phenotypic variance.
In statistics, variance measures how far apart a set of numbers is spread out. If the numbers are identical, the variance is zero. Variance can never be negative.
no it is not possible because you have to take the square of error that is (x-X)2. the square of any number is always positive----------Improved answer:It is not possible to have a negative standard deviation because:SD (standard deviation) is equal to the square of V (variance).
yes