you flip a coin. what is p(heads or tails)? simplify your answer and write it as a fraction or whole number.

Explanation:

Step1: Identify sample - space

A coin flip has 2 possible outcomes: heads (H) and tails (T). So the sample - space $S={H,T}$, and $n(S) = 2$.

Step2: Identify favorable outcomes

The event of getting heads or tails has 2 favorable outcomes (either heads or tails). Let $E$ be the event of getting heads or tails, then $n(E)=2$.

Step3: Calculate probability

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

Answer:

1