The variance can never be
a. zero.
b. larger than the standard deviation.
c. negative.
d. smaller than the standard deviation.
Question 2
A negative dual price for a constraint in a minimization problem means
a. as the right-hand side increases, the objective function value will increase.
b. as the right-hand side decreases, the objective function value will increase.
c. as the right-hand side increases, the objective function value will decrease.
d. as the right-hand side decreases, the objective function value will decrease.
Water potentials decrease (become more negative) as one moves from soil to plant to atmosphere
Deviation of Normal Posture
Elementary particles included in the Standard Model
Timothy O'Sullivan (negative) and Alexander Gardner (print), A Harvest of Death, Gettysburg, ...
A negative feedback loop.
Positive and Negative Punishment