a factory robot recently examined some bulbs, of which 12 were flawed and 48 were not. considering this…
a factory robot recently examined some bulbs, of which 12 were flawed and 48 were not. considering this data, how many flawed bulbs would the robot be expected to find in a batch of 95 bulbs? flawed bulbs
Answer
Explanation:
Step1: Calcular la proporción de bombillas defectuosas
La proporción de bombillas defectuosas en la muestra inicial es $\frac{12}{12 + 48}=\frac{12}{60}=\frac{1}{5}$.
Step2: Calcular el número esperado de bombillas defectuosas
Multiplicamos la proporción por el tamaño del lote. Sea $x$ el número de bombillas defectuosas en el lote de 95 bombillas. Entonces $x=\frac{1}{5}\times95 = 19$.
Answer:
19