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Rasek [7]
3 years ago
11

Cho hai biến cố xung khắc và B, sao cho ( ≠ 0), ( ≠ 0). Hỏi A và B có độc lập không?

Mathematics
1 answer:
romanna [79]3 years ago
3 0

Answer:

Ta có:   P  ( A )  P  ( B )  =  0 , 12 . Vì  P  ( A B )  =  0 , 2  ≠  0 , 12  =  P  ( A )  P  ( B )

nên hai biến cố A và B không độc lập với nhau.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Problem 1:
kondor19780726 [428]

Answer:

1) The variable is x

2) 1.5x > 51 Solving the inequality we get x>34

3) 5b > 51, solving the inequality we get b>10.2

Step-by-step explanation:

1. Define the variable:

The variable is x

2) Trini needs more than 51  cubic feet of soil to top up  his raised garden. Each bag  of soil contains 1.5 cubic  feet. Write and solve an  inequality to find how many  bags of soil Trini needs.

1.5x > 51

Solving the inequality

x>\frac{51}{1.5}\\x>34

Solving the inequality we get x>34

3) Write the inequality:

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4) Solving the inequality

5b > 51\\b>\frac{51}{5}\\b>10.2

So, solving the inequality we get b>10.2

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Answer:

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Step-by-step explanation:

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plz mark my answer as brainlist plzzzz.

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