### Home > GC > Chapter 6 > Lesson 6.1.3 > Problem 6-25

6-25.

The sum of the probabilities of all the possible outcomes is always 1.

Use a tree diagram.

Calculate probability:

P(one point) = (0.6)(0.4) = 0.24

P(two points) = (0.6)(0.6) = 0.36

6-25.

The sum of the probabilities of all the possible outcomes is always 1.

Use a tree diagram.

Calculate probability:

P(one point) = (0.6)(0.4) = 0.24

P(two points) = (0.6)(0.6) = 0.36