Question

An ice cream machine offers three flavors: vanilla, chocolate, and strawberry. Each flavor can be served as a milkshake, in a cone, or in a cup.
This is a tree diagram that represents the probability of customers choosing the different ice cream options.
What is the value of Z?
Group of answer choices

0.2

0.4

0.35

0.45

Answer 1

Each section of the tree diagram (in this case the branches that say vanilla chocolate and strawberry) must add up to 1

so to answer you should do 0.45+0.35= 0.8
then 1-0.8 =0.2

so Z is 0.2