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alexx2595
16.08.2021 •
Mathematics
A. X is a random variable denotes number of customers visiting a local coffee shop, which follows a Poisson distribution. The mean number of customers per 10 minutes is 6.
a. What is the probability that there are 8 or less customers in the next 20 minutes?
b. What is the probability that there are more than 4 customers in the next 10 minutes?
B. X is a random variable denotes number of customers visiting a local coffee shop, which follows a Poisson distribution. The mean number of customers per 6 minutes is 6?
a. What is the probability the associate have to wait less than 1 minute to have the next customer showing up?
C. X is a random variable denotes number of customers visiting a local coffee shop, which follows a Poisson distribution. The mean number of customers per 6 minutes is 12?
a. What is the probability the associate have to wait more than 1 minutes to have the next customer showing up?
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Ответ:
A
(a) You're looking for
where
Customers arrive at a mean rate of 6 customers per 10 minutes, or equivalently 12 customers per 20 minutes, so
Then
(b) Now you want
This time, we have
so that
B
(a) In other words, you're asked to find the probability that more than 1 customer shows up in the same minute, or
with
So we have
C
(a) Similar to B, you're looking for
with
so that
Ответ:
145°
Step-by-step explanation:
As per the given information: quadrilateral ABCD is a parallelogram.
(adjacent angles of a parallelogram)