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A and B are two independent Bernoulli Ber(0.1) random variables. Define Random variables C=A+B and D=|A-B|....

A and B are two independent Bernoulli Ber(0.1) random variables. Define Random variables C=A+B and D=|A-B|. What is P(C≤1, D ≤1)?

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Note-if there is any understanding problem regarding this please feel free to ask via comment box..thank you

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