you pick a card at random. what is p(not prime)? write your answer as a fraction or whole number.
you pick a card at random. what is p(not prime)? write your answer as a fraction or whole number.
Answer
Explanation:
Step1: Identify prime numbers
Prime numbers among 1 - 8 are 2, 3, 5, 7.
Step2: Calculate non - prime numbers
Total numbers = 8. Non - prime numbers are 1, 4, 6, 8, so there are 4 non - prime numbers.
Step3: Calculate probability
Probability formula is $P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. Here, $P(\text{not prime})=\frac{4}{8}=\frac{1}{2}$.
Answer:
$\frac{1}{2}$