In the case where two or more, possibly related, discrete random variables are examined, it is important that probability models reflect the joint effect of variables on probabilities

With careful planning, project risk can be reduced to zero

Indicate whether the statement is true or false

The order of magnitude cost estimate is used when:

A) Ballpark estimates are not considered accurate enough. B) Historical data are readily available. C) Information or time is scarce. D) Parametric estimation has already been performed.