you flip a coin. what is p(not heads)? simplify your answer and write it as a fraction or whole number.
you flip a coin. what is p(not heads)? simplify your answer and write it as a fraction or whole number.
Answer
Explanation:
Step1: Identify total and favorable outcomes
A coin - flip has 2 possible outcomes (heads or tails). The event of "not heads" is the same as getting tails, which is 1 outcome.
Step2: Calculate the probability
The probability formula is $P(E)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. Here, the number of favorable outcomes for "not heads" is 1, and the total number of outcomes is 2. So $P(\text{not heads})=\frac{1}{2}$.
Answer:
$\frac{1}{2}$