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goldfiish [28.3K]
2 years ago
6

Thời gian vận chuyển hàng hóa trên tuyến đường AB là biến ngẫu nhiên X có phân phối

Mathematics
2 answers:
steposvetlana [31]2 years ago
8 0

Answer:

Step-by-step explanation:

P(X>5.5)= 0.5-phi((5.5-5)/0.25)

=0.5- phi(2)

= 0.5-0.4773= 0.0227

Goshia [24]2 years ago
4 0

Answer:

Thời gian vận chuyển hàng hóa trên tuyến đường AB là biến ngẫu nhiên X có phân phối

chuẩn với trung bình   5 giờ, độ lệch chuẩn   0, 25 giờ.

a. Chuyến có thời gian lớn hơn 5,2 ( ) /100   a b  giờ được xem là trễ, tính tỉ lệ chuyến trễ?

Step-by-step explanation:

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Answer:

Supplementary Angles

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Step-by-step explanation:

Angles 1 and 2 share a vertex and form a straight line. These angles are called supplementary angles. They add to 180 degrees and form a straight line. They are adjacent as well because they share a vertex and side.

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2 years ago
Which equations are true for x = -2 and x = 2? Select two options
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Answer:

A and C

Step-by-step explanation:

solving the equations

A

x² - 4 = 0 ( add 4 to both sides )

x² = 4 ( take square root of both sides )

x = ± \sqrt{4} = ± 2 ← required solution

B

x² = - 4 ← has no real solutions

C

4x² = 16 ( divide both sides by 4 )

x² = 4 ( take square root of both sides )

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D

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x- 2 = 0 ( add 2 to both sides )

x = 2 ← not the required solution

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A group of friends wants to go to the amusement park. they have no more than $405 to spend on parking and admission. parking is
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20+38.50x \leq 405

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Which equation, in point-slope form, passes through (-2, 4) and has a slope of 3?
MA_775_DIABLO [31]

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