you flip a coin. what is p(tails or heads)? write your answer as a percentage rounded to the nearest tenth.

Explanation:

Step1: Identify total outcomes

A coin - flip has 2 possible outcomes (heads or tails), so $n(S)=2$.

Step2: Identify favorable outcomes

The event of getting tails or heads has 2 favorable outcomes (either tails or heads), so $n(A) = 2$.

Step3: Calculate probability

The probability formula is $P(A)=\frac{n(A)}{n(S)}$. Substituting the values, we get $P(A)=\frac{2}{2}=1$.

Step4: Convert to percentage

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

Answer:

100%