you flip a coin. what is p(not heads)? write your answer as a percentage. %

Explanation:

Step1: Identify total outcomes

A coin - flip has 2 possible outcomes (heads or tails).

Step2: Identify favorable outcomes

The event of 'not heads' means getting tails, which is 1 outcome.

Step3: Calculate probability

The probability formula is $P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. So $P(\text{not heads})=\frac{1}{2}$.

Step4: Convert to percentage

To convert a fraction to a percentage, we multiply by 100. $\frac{1}{2}\times100 = 50%$.

Answer:

50%