Answer:
The total number of digital video recorders (DVRs ) are
[tex]=50[/tex]That is the number of sample space will be
[tex]n(S)=50[/tex]The number of defective DVRs is
[tex]=3[/tex]That is,
The number of required outcomes is
[tex]n(R)=3[/tex]The probability that a randomly selected item is defective will be
[tex]\begin{gathered} Pr(D)=\frac{n(R)}{n(S)} \\ Pr(D)=\frac{3}{50} \end{gathered}[/tex]Hence,
The probability is = 3/50
