you pick a card at random. 7 8 9 what is p(9)? write your answer as a fraction or whole number.

Explanation:

Step1: Determine total outcomes

There are 3 cards, so total number of outcomes is 3.

Step2: Determine favorable outcomes

There is 1 card with the number 9, so favorable number of outcomes is 1.

Step3: Calculate probability

Probability formula is $P(A)=\frac{\text{Favorable outcomes}}{\text{Total outcomes}}$, so $P(9)=\frac{1}{3}$.

Answer:

$\frac{1}{3}$