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Probability of dependent eventsThere are 8 people fishing at Lake Connor: 5 have fishing licenses, and 3 do not. An Inspector chooses two of the people at random. What is the probability that neither person has a license? Write your answer as a fraction in simplest form.

Answer :

Answer:

Probability that neither of the two persons has a license = 3/28

Explanation:

Total number of people fishing, n(Total) = 8

Number of people with fishing licenses, n(License) = 5

Number of people without fishing license, n(No license) = 3

Number of ways of choosing 2 people out of 8

[tex]\begin{gathered} 8C2=\frac{8!}{(8-2)!2!} \\ 8C2\text{ = }\frac{8!}{6!2!} \\ 8C2=\frac{8\times7\times6!}{6!\times2\times1} \\ 8C2=28\text{ ways} \end{gathered}[/tex]

Since neither of the two people chosen has a license, they will be chosen from the 3 people who do not have a license

[tex]\begin{gathered} 3C2=\frac{3!}{(3-2)!2!} \\ 3C2=\frac{3\times2\times1}{2\times1} \\ 3C2=3\text{ ways} \end{gathered}[/tex]

Probability that neither of the two persons has a license = 3/28

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