choosing 5 songs out of 10 probability [on hold]











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A music player is playing 5 songs out of 10 randomly.
a. what is the probability the 5 chosen songs will be the same?
b. what is the probability that at least one song will be played more then once?
c. what is the probability that the first and fifth song will be the same song?



i just couldn't get the hang of it. i'll be glad if someone could explain it to me.



thank you
well for the i know that the denominator is 10c5. and for the first question i need to have the same song 5 times so i taught it was 1/5 but i got 6.3*10^-6 which seems very small










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put on hold as off-topic by Jean-Claude Arbaut, Rebellos, John B, Davide Giraudo, jgon yesterday


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Jean-Claude Arbaut, Rebellos, John B, Davide Giraudo, jgon

If this question can be reworded to fit the rules in the help center, please edit the question.









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    Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort. This should be added to the question rather than in the comments.
    – José Carlos Santos
    yesterday






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    You haven't got the hang of it, that is fine. For example, can you find the sample space for this question i.e. the set of possible outcomes when you choose five songs out of ten?
    – астон вілла олоф мэллбэрг
    yesterday






  • 1




    I suspect that each choice can be any of the ten songs, and so the denominator would be $10^5$. If so, the numerators might be $10^1, 10^5-{10 choose 5},10^4$
    – Henry
    yesterday

















up vote
-2
down vote

favorite












A music player is playing 5 songs out of 10 randomly.
a. what is the probability the 5 chosen songs will be the same?
b. what is the probability that at least one song will be played more then once?
c. what is the probability that the first and fifth song will be the same song?



i just couldn't get the hang of it. i'll be glad if someone could explain it to me.



thank you
well for the i know that the denominator is 10c5. and for the first question i need to have the same song 5 times so i taught it was 1/5 but i got 6.3*10^-6 which seems very small










share|cite|improve this question









New contributor




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











put on hold as off-topic by Jean-Claude Arbaut, Rebellos, John B, Davide Giraudo, jgon yesterday


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Jean-Claude Arbaut, Rebellos, John B, Davide Giraudo, jgon

If this question can be reworded to fit the rules in the help center, please edit the question.









  • 2




    Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort. This should be added to the question rather than in the comments.
    – José Carlos Santos
    yesterday






  • 1




    You haven't got the hang of it, that is fine. For example, can you find the sample space for this question i.e. the set of possible outcomes when you choose five songs out of ten?
    – астон вілла олоф мэллбэрг
    yesterday






  • 1




    I suspect that each choice can be any of the ten songs, and so the denominator would be $10^5$. If so, the numerators might be $10^1, 10^5-{10 choose 5},10^4$
    – Henry
    yesterday















up vote
-2
down vote

favorite









up vote
-2
down vote

favorite











A music player is playing 5 songs out of 10 randomly.
a. what is the probability the 5 chosen songs will be the same?
b. what is the probability that at least one song will be played more then once?
c. what is the probability that the first and fifth song will be the same song?



i just couldn't get the hang of it. i'll be glad if someone could explain it to me.



thank you
well for the i know that the denominator is 10c5. and for the first question i need to have the same song 5 times so i taught it was 1/5 but i got 6.3*10^-6 which seems very small










share|cite|improve this question









New contributor




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











A music player is playing 5 songs out of 10 randomly.
a. what is the probability the 5 chosen songs will be the same?
b. what is the probability that at least one song will be played more then once?
c. what is the probability that the first and fifth song will be the same song?



i just couldn't get the hang of it. i'll be glad if someone could explain it to me.



thank you
well for the i know that the denominator is 10c5. and for the first question i need to have the same song 5 times so i taught it was 1/5 but i got 6.3*10^-6 which seems very small







probability combinatorics






share|cite|improve this question









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











share|cite|improve this question









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









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edited yesterday





















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idobs is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked yesterday









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




put on hold as off-topic by Jean-Claude Arbaut, Rebellos, John B, Davide Giraudo, jgon yesterday


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Jean-Claude Arbaut, Rebellos, John B, Davide Giraudo, jgon

If this question can be reworded to fit the rules in the help center, please edit the question.




put on hold as off-topic by Jean-Claude Arbaut, Rebellos, John B, Davide Giraudo, jgon yesterday


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Jean-Claude Arbaut, Rebellos, John B, Davide Giraudo, jgon

If this question can be reworded to fit the rules in the help center, please edit the question.








  • 2




    Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort. This should be added to the question rather than in the comments.
    – José Carlos Santos
    yesterday






  • 1




    You haven't got the hang of it, that is fine. For example, can you find the sample space for this question i.e. the set of possible outcomes when you choose five songs out of ten?
    – астон вілла олоф мэллбэрг
    yesterday






  • 1




    I suspect that each choice can be any of the ten songs, and so the denominator would be $10^5$. If so, the numerators might be $10^1, 10^5-{10 choose 5},10^4$
    – Henry
    yesterday
















  • 2




    Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort. This should be added to the question rather than in the comments.
    – José Carlos Santos
    yesterday






  • 1




    You haven't got the hang of it, that is fine. For example, can you find the sample space for this question i.e. the set of possible outcomes when you choose five songs out of ten?
    – астон вілла олоф мэллбэрг
    yesterday






  • 1




    I suspect that each choice can be any of the ten songs, and so the denominator would be $10^5$. If so, the numerators might be $10^1, 10^5-{10 choose 5},10^4$
    – Henry
    yesterday










2




2




Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort. This should be added to the question rather than in the comments.
– José Carlos Santos
yesterday




Welcome to MSE. It will be more likely that you will get an answer if you show us that you made an effort. This should be added to the question rather than in the comments.
– José Carlos Santos
yesterday




1




1




You haven't got the hang of it, that is fine. For example, can you find the sample space for this question i.e. the set of possible outcomes when you choose five songs out of ten?
– астон вілла олоф мэллбэрг
yesterday




You haven't got the hang of it, that is fine. For example, can you find the sample space for this question i.e. the set of possible outcomes when you choose five songs out of ten?
– астон вілла олоф мэллбэрг
yesterday




1




1




I suspect that each choice can be any of the ten songs, and so the denominator would be $10^5$. If so, the numerators might be $10^1, 10^5-{10 choose 5},10^4$
– Henry
yesterday






I suspect that each choice can be any of the ten songs, and so the denominator would be $10^5$. If so, the numerators might be $10^1, 10^5-{10 choose 5},10^4$
– Henry
yesterday

















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