you spin the spinner once. what is p(not 3)? write your answer as a fraction or whole number.

Explanation:

Step1: Determine total outcomes

The spinner has 5 sections, so total outcomes $n = 5$.

Step2: Determine favorable outcomes

The number of sections that are not 3 is 4, so favorable outcomes $m = 4$.

Step3: Calculate probability

The probability formula is $P(A)=\frac{m}{n}$, so $P(\text{not }3)=\frac{4}{5}$.

Answer:

$\frac{4}{5}$