Question

the given jar contains yellow (y), blue (b), and red (r) balls. anne randomly chooses a single ball from the can shown here. find the odds against the event. red or yellow (r or y)
state the odds against red or yellow in lowest terms.
the odds against red or yellow are to . (type whole numbers.)

Explanation:

Step1: Count total balls

There are 10 balls in the jar.

Step2: Count red or yellow balls

There are 2 yellow and 1 red ball. So, $2 + 1=3$ red or yellow balls.

Step3: Count non - red or yellow balls

Non - red or yellow balls are blue balls. There are $10-(2 + 1)=7$ blue balls.

Step4: Determine odds against

Odds against an event is the ratio of non - favorable outcomes to favorable outcomes. So, odds against red or yellow is $7$ to $3$.

Answer:

7 to 3