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Neporo4naja [7]
2 years ago
12

Marcus has 731 books. He puts about the same number of books on each of 9 shelves in his bookcase about how many books are on ea

ch shelf?
Mathematics
1 answer:
GuDViN [60]2 years ago
7 0

Answer:

Approximately 81 books

Step-by-step explanation:

731 / 9

Divide 731 by 9 to get 81.22...

731 / 9 = 81.22...

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Zigmanuir [339]

Answer:

E(w) = 1600000

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Step-by-step explanation:

given data

sequence = 1 million iid  (+1 and +2)

probability of transmitting a +1 =  0.4

solution

sequence will be here as

P{Xi = k } = 0.4              for k = +1

                  0.6              for k = +2

and define is

x1  + x2 + ................ + X1000000

so for expected value for W

E(w) = E( x1  + x2 + ................ +  X1000000 )   ......................1

as per the linear probability of expectation

E(w) = 1000000 ( 0.4 × 1 + 0.6 × 2)

E(w) = 1600000

and

for variance of W

v(w) = V ( x1  + x2 + ................ + X1000000 )    ..........................2

v(w) = V x1  + V x2 + ................  + V  X1000000

here also same as that xi are i.e d so cov(xi, xj ) = 0 and i ≠ j

so

v(w) = 1000000 ( v(x) )

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v(w) = 240000

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Answer:

621/87=7.13793103448

Step-by-step explanation:

I divided it and got this answer

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