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The unaccounted for variance aka Error Variance, is the amount of variance of the dependent variable (DV) that is not accounted for by the main effects/independent variables (IV) and their interactions.

Q: What is Proportion of variance unaccounted?

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Is the result of unsystematic differences among participants; that portion of the total variance in a set of data that remains unaccounted for a systematic variance is removed; variance that is unrelated to the variables under investigation in a study.

The coefficient of simple determination tells the proportion of variance in one variable that can be accounted for (or explained) by variance in another variable. The coefficient of multiple determination is the Proportion of variance X and Y share with Z; or proportion of variance in Z that can be explained by X & Y.

Variance is used to add standard deviations when comparing two samples or populations. Variance is simply Std^2. The formula for obtaining Std is dependent on the type of sample taken\ hypothesis test performed i.e. 2-proportion pop/sample, single proportion, poussin, binomial, etc.

Heritability

Heritability is the statistical estimate of the proportion of the total variance in a trait that is attributed to genetic differences among individuals within a group. It provides a way to quantify the extent to which genetic factors contribute to individual differences in a specific trait within a population.

A famous unaccounted for person.

[((.39)^2)*160 +((.61)^2)*340+2*.61*.39*190]^.5 = 15.5323

Favourable variance is that variance which is good for business while unfavourable variance is bad for business

Negative price variance is when the cost is less than budgeted. Volume variance is a variance in the volume produce.

efficiency variance, spending variance, production volume variance, variable and fixed components

whatdoes the word unaccountable mean

There are 7 variances associated with a budget ( which are generally calculated for controlling purposes) 1- Material Price variance 2- Material Quantity variance 3- Labor rate variance 4- Labor efficiency variance 5- Spending variance 6- Efficiency variance 7- Capacity variance