you pick a card at random. what is p(not 9)? write your answer as a fraction or whole number.

Explanation:

Step1: Determine total outcomes

There are 3 cards, so total number of outcomes $n = 3$.

Step2: Determine favorable outcomes

The outcomes that are not 9 are 7 and 8, so number of favorable outcomes $m=2$.

Step3: Calculate probability

The probability formula is $P(A)=\frac{m}{n}$. Here, $P(\text{not }9)=\frac{2}{3}$.

Answer:

$\frac{2}{3}$