When studying probability, a method used for counting the number of possible outcomes is a ______.

a.tree diagram
b.dependent event
c.relative frequency
d.simulation

A?

yes, correct.

Thanks, again!

That's correct! The method used for counting the number of possible outcomes in probability is a tree diagram.

A tree diagram is a visual representation that helps to organize and count all the possible outcomes of an event or experiment. It is especially useful when dealing with multiple stages or dependent events. Each branch of the tree represents a possible outcome, and by following the branches, you can determine all the different combinations or sequences of outcomes.

For example, if you were flipping a coin twice, a tree diagram could be used to illustrate the four possible outcomes: HH, HT, TH, and TT, where H represents heads and T represents tails. By counting the number of branches or paths in the tree diagram, you can determine the total number of possible outcomes.