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algol13
2 years ago
10

Which of the following could be the equation of the function below?

Mathematics
1 answer:
yaroslaw [1]2 years ago
3 0
I don’t really know about this sorry
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A group of n people enter an elevator in a building with k floors. Each person independently selects a floor uniformly at random
____ [38]

Answer:

Hence the person stop at floor by at least one person will be

E(X)=(summation from K=1 to k)[1-{(k-1)/k}^n]

Step-by-step explanation:

Given:

There are n peoples and k floors in a building.

Selects floor with 1/k probability .

To find :

Elevator stop at each floor by at least one person.

Solution:

Now

let K= number of floor at which at least one person will be stopping.

For getting E(X)

consider a variable Ak =1 if a least one person get of the elevator

and values for k=1,2,3.....k

K=(summation From k=1 to k)Ak

E(K)=((summation From k=1 to k) E[Ak]

=(summation From k=1 to k)[1-{(k-1/k)^n

Hence the person stop at floor by at least one person will be

E(K)=(summation from K=1 to k)[1-{(k-1)/k}^n]

4 0
3 years ago
I need soooomych Help
Mashcka [7]
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3 years ago
Brian flips a fair coin 3 times. What is the probability of getting exactly 1 tail?
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Answer:

1/3

Step-by-step

he flips the coin three time and there is one side so 1/3

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The answer is 69

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