Determine the formula for the expected value












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$begingroup$


So I'm given an assignment in probability and statistic that states the following:



In a supermarket on every cash register cashiers server(independently from one another) a total number of n customers in one hour. The cash registers are not available in any given moment.



If the market has 3 cash registers find the point estimation for the total number of served customers in one hour.



I assume we need to find the expected value after which we will find the point estimation. However I don't know the formula for the density function or for the probability formula if its a discrete distribution.



Is this a variance of the Poisson Distribution?



Thank you in advance.










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  • $begingroup$
    Not knowing exactly what you mean by The cash registers are not available in any given moment. it is not possible to solve the problem.
    $endgroup$
    – BruceET
    Dec 29 '18 at 22:18
















0












$begingroup$


So I'm given an assignment in probability and statistic that states the following:



In a supermarket on every cash register cashiers server(independently from one another) a total number of n customers in one hour. The cash registers are not available in any given moment.



If the market has 3 cash registers find the point estimation for the total number of served customers in one hour.



I assume we need to find the expected value after which we will find the point estimation. However I don't know the formula for the density function or for the probability formula if its a discrete distribution.



Is this a variance of the Poisson Distribution?



Thank you in advance.










share|cite|improve this question









$endgroup$












  • $begingroup$
    Not knowing exactly what you mean by The cash registers are not available in any given moment. it is not possible to solve the problem.
    $endgroup$
    – BruceET
    Dec 29 '18 at 22:18














0












0








0





$begingroup$


So I'm given an assignment in probability and statistic that states the following:



In a supermarket on every cash register cashiers server(independently from one another) a total number of n customers in one hour. The cash registers are not available in any given moment.



If the market has 3 cash registers find the point estimation for the total number of served customers in one hour.



I assume we need to find the expected value after which we will find the point estimation. However I don't know the formula for the density function or for the probability formula if its a discrete distribution.



Is this a variance of the Poisson Distribution?



Thank you in advance.










share|cite|improve this question









$endgroup$




So I'm given an assignment in probability and statistic that states the following:



In a supermarket on every cash register cashiers server(independently from one another) a total number of n customers in one hour. The cash registers are not available in any given moment.



If the market has 3 cash registers find the point estimation for the total number of served customers in one hour.



I assume we need to find the expected value after which we will find the point estimation. However I don't know the formula for the density function or for the probability formula if its a discrete distribution.



Is this a variance of the Poisson Distribution?



Thank you in advance.







statistics






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share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Dec 29 '18 at 15:43









David DanielsDavid Daniels

132




132












  • $begingroup$
    Not knowing exactly what you mean by The cash registers are not available in any given moment. it is not possible to solve the problem.
    $endgroup$
    – BruceET
    Dec 29 '18 at 22:18


















  • $begingroup$
    Not knowing exactly what you mean by The cash registers are not available in any given moment. it is not possible to solve the problem.
    $endgroup$
    – BruceET
    Dec 29 '18 at 22:18
















$begingroup$
Not knowing exactly what you mean by The cash registers are not available in any given moment. it is not possible to solve the problem.
$endgroup$
– BruceET
Dec 29 '18 at 22:18




$begingroup$
Not knowing exactly what you mean by The cash registers are not available in any given moment. it is not possible to solve the problem.
$endgroup$
– BruceET
Dec 29 '18 at 22:18










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