The probability that it will take more than 6 minutes for all the customers in line to check out is 0.40.
We are given the probability distribution of x, the number of customers in line at a supermarket express checkout counter.
Moreover, we are given that each customer takes 3 minutes to check out.
It means that if there are 0 customers in line, i.e., x=0, then it will take 0 minutes for all the customers currently in line to check out.
If there is 1 customer in line, i.e., x=1, then it will take 3 minutes for all the customers currently in line to check out.
If there are 2 customers in line, i.e., x=2, then it will take 6 minutes for all the customers currently in line to check out.
If there are 3 customers in line, i.e., x=3, then it will take 9 minutes for all the customers currently in line to check out.
If there are 4 customers in line, i.e., x=4, then it will take 12 minutes for all the customers currently in line to check out.
If there are 5 customers in line, i.e., x=5, then it will take 15 minutes for all the customers currently in line to check out.
From above we note that if there are 3 or more customers in the line, then it will take more than 6 minutes (note that the case of check out time equal to 6 minutes is not included when we want 'more than 6 minutes') for all the customers currently in line to check out.
Thus, required probability is given by:
P(more than 6 minutes for all the customers currently in line to check out) = P(x ≥ 3)
= P(x=3) + P(x=4) + P(x=5)
= 0.20 + 0.15 + 0.05
= 0.40
Therefore, the probability that it will take more than 6 minutes for all the customers in line to check out is 0.40.
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Without specific information on the total number of customers or the distribution of customers in line, we cannot calculate a specific probability for it to take more than 6 minutes for all customers to check out, given that each customer takes 3 minutes.
The question is about the probability that it will take more than 6 minutes for all the customers in line to check out, given that each customer takes 3 minutes. The time it takes for all the customers to check out is determined by the number of customers in line. If there are two or more customers in line, it will definitely take more than 6 minutes for all of them to check out, because the checkout time is 3 minutes per customer.
So, the question of probability relates to the likelihood of there being two or more customers in line. Without information on the total number of customers, or the distribution of customers in line, we cannot calculate a specific probability.
Please note, this is a practical application of topics in probability and queue theory, involving concepts like mean arrival rate and service rate.
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Simplify your answer as much as possible.
Answer:
mixed number: 4 1/15
Exact: 61/15
Answer:
Step-by-step explanation:
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15ml to become more concentrated divide the amount
Step-by-step explanation:
Answer:
-4.2
Step-by-step explanation:
To divide 26.04 by -6.2, you can follow these steps: Multiply both numbers by 10 to eliminate decimal places. Divide the resulting numbers. The answer is 4.24.
To divide 26.04 by -6.2, you can follow these steps:
Therefore, 26.04 divided by -6.2 is equal to 4.24.
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