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Statistics4win

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I'm stuck in this question, could someone give me a hand?

Question 9:

Let \(\displaystyle A = (1,2,3,4)\) and \(\displaystyle Z = (1,2,3,4,5,6,7,8,9,10)\), if a subset

a) \(\displaystyle P (B⊂A)\) B is a proper subset of A

b) \(\displaystyle P (A∩B = Ø)\) A intersection B =empty set

Appreciate

Question 9:

Let \(\displaystyle A = (1,2,3,4)\) and \(\displaystyle Z = (1,2,3,4,5,6,7,8,9,10)\), if a subset

**B**of**Z**is selected by chance calculate the probability of:a) \(\displaystyle P (B⊂A)\) B is a proper subset of A

b) \(\displaystyle P (A∩B = Ø)\) A intersection B =empty set

Appreciate

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