If two stocks have a correlation of +1, then the standard deviation of a portfolio between them is given by:

The total production cost flexible budget variance is obtained by adding direct labor efficiency variance and fixed overhead volume variance

Indicate whether the statement is true or false

Which statement is true concerning constant sum scaling?

A) It does not have an absolute zero. B) It allows for fine discrimination among stimulus objects without requiring much time. C) Respondents may allocate more or fewer units than those specified. D) Both B and C are correct.