you flip a coin. what is p(tails or heads)? write your answer as a percentage. %

Explanation:

Step1: Identify sample - space

A coin flip has 2 possible outcomes: heads (H) and tails (T).

Step2: Calculate probability of 'tails or heads'

The event of getting tails or heads encompasses all possible outcomes. The probability formula is $P(E)=\frac{n(E)}{n(S)}$, where $n(E)$ is the number of elements in the event $E$ and $n(S)$ is the number of elements in the sample - space $S$. Here, $n(E) = 2$ (either tails or heads) and $n(S)=2$. So $P(\text{tails or heads})=\frac{2}{2}=1$.

Step3: Convert to percentage

To convert a number to a percentage, we multiply by 100. So $1\times100 = 100%$.

Answer:

100%