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bogdanovich [222]
2 years ago
12

sử dụng mô hình AD-AS phân tích cơ chế tác động của xuất khẩu ròng tới mức giá chung, việc làm và sản lượng.

Mathematics
1 answer:
Ksenya-84 [330]2 years ago
4 0
Okay I’m sorry I do not understand what that language was j you can also add the second
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Answer:

Step-by-step explanation:

Assume that f(x) = 0 for x outside the interval [4,7]. We will use the following

E[X^k] = \int_{4}^{7}x^k f(x) dx

Var(X) = E[X^2]- (E[X])^2

Standard deviation = \sqrt[]{Var(X)}

Mean = E[X]

Then,

E[X] = \int_{4}^{7}\frac{1}{3}dx = \frac{7^2-4^2}{2\cdot 3} = \frac{11}{2}

E[X^2] = \int_{4}^{7}\frac{x^2}{3}dx = \frac{7^3-4^3}{3\cdot 3} = 31

Then, Var(x) = 31-(\frac{11}{2})^2 = \frac{3}{4}

Then the standard deviation is \frac{\sqrt[]{3}}{2}

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3 years ago
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Step-by-step explanation:

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3 years ago
How many groups of 100 pennies are in 100 pennies
maria [59]
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4 0
4 years ago
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Alekssandra [29.7K]

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3 years ago
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olga2289 [7]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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