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you check 20 laser pointers at random. 3 of the laser pointers are defective what is the experimental probability that a laser pointer is defective

Respuesta :

Answer: [tex]\frac{3}{20}[/tex]


Step-by-step explanation:

Given: The total number of laser pointers checked = 20

The number of defective laser pointers = 3

We know that the experimental probability[tex]=\frac{\text{number of favorable outcomes}}{\text{ total outcomes}}[/tex]

∴The experimental probability that a laser pointer is defective[tex]=\frac{3}{20}[/tex]