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riadik2000 [5.3K]
3 years ago
15

Hộp I có 10 sản phẩm tốt, 2 hỏng; hộp II có 20 sản phẩm tốt, 4 hỏng. Chọn ngẫu nhiên một hộp, rồi từ đó lấy ta một sản phẩm.

Mathematics
1 answer:
GaryK [48]3 years ago
6 0

Answer:

60

Step-by-step explanation:

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The standard error in estimating the mean = (0.1 × standard deviation of the distribution)

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The standard error of the mean, for a sample, σₓ is related to the standard deviation, σ, through the relation

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How many lines of symmetry does this figure have<br> A 1<br> B, 2<br> C. 3<br> D, 4
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A.1

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Compare the graph of g(x) = 6x2 with the graph of f(x) = x2.
sertanlavr [38]

Answer:

see explanation

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graph{(y-x^2)(y-x^2-6)=0 [-20, 20, -10, 10]}

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Suppose the linear regression line y=2.1x+130 predicts sales based on the money spent on advertising. If x represents the dollar
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