Question

brandon is making party decorations by selecting one of two kinds of balloons - heart - shaped balloons or oval - shaped balloons. he puts them in one of three baskets - red, pink, or white. the sample space for the event of selecting a balloon and putting it in one of the baskets is represented in the tree diagram. complete the sample space.
oval red white pink
party decoration
heart
pink
white
red
pink
white

Explanation:

Step1: Analyze the first blank

The first level of the tree diagram is the type of balloon. One branch is "heart", so the other blank should be the other type of balloon, which is "oval".

Step2: Analyze the second blank

For the "heart" - shaped balloon, each branch is a color of the basket. The first color (top - most branch for "heart") should follow the order of basket colors. Since the baskets are red, pink, white, for the "heart" - shaped balloon, the first blank (top - most) is "red".

Answer:

The top - most blank (for the "heart" - shaped balloon's first basket) is "red", and the lower blank (the other balloon type) is "oval".