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willowcollins3753
26.10.2019 •
Mathematics
Amachine receives signals and the number of signals it receives has a poisson(λ) distribution.the signal is either positive or negative and the probability for the signal to be positive isp. signals aremutually independent and are independent of the number of signals the machine receives. let the numberof positive signals it receives beηand find the distribution ofη.
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Ответ:
fabric (square meters) cloaks
7 21
4/3 4
step-by-step explanation:
we are told that harry needs 2 square meters of fabric for every 6 wizard cloaks he makes.
1. first of all we will find how many cloaks can be made from 1 square meter of fabric by dividing 6 by 2.
we can see that 3 cloaks can be made from 1 square meter of fabric. now we will multiply 3 by 7 to find number of cloaks made from 7 square meters of fabric.
therefore, harry will make 21 cloaks from 7 square meters of fabric.
2. let us find how many square meters of fabric will be needed to make 4 cloaks.
first of all we will find fabric needed for 1 cloak by dividing 2 by 6.
we can see that fabric needed for 1 cloak is square meter. now we will multiply by 4 to find fabric needed for 4 cloaks.