a university class has 18 students enrolled, 3 of whom are seniors. what is the probability that a randomly…
a university class has 18 students enrolled, 3 of whom are seniors. what is the probability that a randomly chosen student will be a senior? write your answer as a fraction or whole number. p(senior) =
Answer
Explanation:
Step1: Definir la fórmula de probabilidad
La probabilidad $P(A)$ de un evento $A$ se define como $P(A)=\frac{\text{número de casos favorables}}{\text{número total de casos}}$.
Step2: Identificar casos favorables y totales
Los casos favorables son los estudiantes seniors, que son 3. El número total de estudiantes es 18.
Step3: Calcular la probabilidad
$P(\text{senior})=\frac{3}{18}=\frac{1}{6}$
Answer:
$\frac{1}{6}$