$57$ companies. $10$ displayed at random. Probability of being displayed?











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  1. In my industry our clients are presented with $10$ companies from a possible $57$ to select and send work to. They only choose $1$.


What is the probability that a company is displayed in the $10$ shown to the client?



My attempt: $dfrac{10}{57}$




  1. Another group of companies are in a separate pot and $2$ are displayed from a possible $10$. What is the probability that a company is displayed in the $2$ shown to the client?


Apologies if this appears basic or I have failed to include any relevant information - I have no idea where to begin!










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  • Well, what definition of "probability" are you using? The standard is that ir there are n possible outcomes, all equally likely, then the probability the outcome is one of a subset containing m of those outcomes is m/n.
    – user247327
    Nov 21 at 12:30










  • Yes I would be using standard definition. So the answer would be 10/57 = 0.1754 ?
    – Dan W
    Nov 21 at 12:36












  • Your answer to the first question is correct. You can use the same method to solve the second question.
    – N. F. Taussig
    Nov 21 at 15:34















up vote
0
down vote

favorite













  1. In my industry our clients are presented with $10$ companies from a possible $57$ to select and send work to. They only choose $1$.


What is the probability that a company is displayed in the $10$ shown to the client?



My attempt: $dfrac{10}{57}$




  1. Another group of companies are in a separate pot and $2$ are displayed from a possible $10$. What is the probability that a company is displayed in the $2$ shown to the client?


Apologies if this appears basic or I have failed to include any relevant information - I have no idea where to begin!










share|cite|improve this question









New contributor




Dan W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Well, what definition of "probability" are you using? The standard is that ir there are n possible outcomes, all equally likely, then the probability the outcome is one of a subset containing m of those outcomes is m/n.
    – user247327
    Nov 21 at 12:30










  • Yes I would be using standard definition. So the answer would be 10/57 = 0.1754 ?
    – Dan W
    Nov 21 at 12:36












  • Your answer to the first question is correct. You can use the same method to solve the second question.
    – N. F. Taussig
    Nov 21 at 15:34













up vote
0
down vote

favorite









up vote
0
down vote

favorite












  1. In my industry our clients are presented with $10$ companies from a possible $57$ to select and send work to. They only choose $1$.


What is the probability that a company is displayed in the $10$ shown to the client?



My attempt: $dfrac{10}{57}$




  1. Another group of companies are in a separate pot and $2$ are displayed from a possible $10$. What is the probability that a company is displayed in the $2$ shown to the client?


Apologies if this appears basic or I have failed to include any relevant information - I have no idea where to begin!










share|cite|improve this question









New contributor




Dan W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  1. In my industry our clients are presented with $10$ companies from a possible $57$ to select and send work to. They only choose $1$.


What is the probability that a company is displayed in the $10$ shown to the client?



My attempt: $dfrac{10}{57}$




  1. Another group of companies are in a separate pot and $2$ are displayed from a possible $10$. What is the probability that a company is displayed in the $2$ shown to the client?


Apologies if this appears basic or I have failed to include any relevant information - I have no idea where to begin!







probability






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edited Nov 21 at 15:32









N. F. Taussig

42.8k93254




42.8k93254






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asked Nov 21 at 12:24









Dan W

1




1




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Dan W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Dan W is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • Well, what definition of "probability" are you using? The standard is that ir there are n possible outcomes, all equally likely, then the probability the outcome is one of a subset containing m of those outcomes is m/n.
    – user247327
    Nov 21 at 12:30










  • Yes I would be using standard definition. So the answer would be 10/57 = 0.1754 ?
    – Dan W
    Nov 21 at 12:36












  • Your answer to the first question is correct. You can use the same method to solve the second question.
    – N. F. Taussig
    Nov 21 at 15:34


















  • Well, what definition of "probability" are you using? The standard is that ir there are n possible outcomes, all equally likely, then the probability the outcome is one of a subset containing m of those outcomes is m/n.
    – user247327
    Nov 21 at 12:30










  • Yes I would be using standard definition. So the answer would be 10/57 = 0.1754 ?
    – Dan W
    Nov 21 at 12:36












  • Your answer to the first question is correct. You can use the same method to solve the second question.
    – N. F. Taussig
    Nov 21 at 15:34
















Well, what definition of "probability" are you using? The standard is that ir there are n possible outcomes, all equally likely, then the probability the outcome is one of a subset containing m of those outcomes is m/n.
– user247327
Nov 21 at 12:30




Well, what definition of "probability" are you using? The standard is that ir there are n possible outcomes, all equally likely, then the probability the outcome is one of a subset containing m of those outcomes is m/n.
– user247327
Nov 21 at 12:30












Yes I would be using standard definition. So the answer would be 10/57 = 0.1754 ?
– Dan W
Nov 21 at 12:36






Yes I would be using standard definition. So the answer would be 10/57 = 0.1754 ?
– Dan W
Nov 21 at 12:36














Your answer to the first question is correct. You can use the same method to solve the second question.
– N. F. Taussig
Nov 21 at 15:34




Your answer to the first question is correct. You can use the same method to solve the second question.
– N. F. Taussig
Nov 21 at 15:34















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