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Laura is single and earned a salary of $55,500 in 2013. She also earned $250 in savings interest and contributed $4600 to a retirement account. She donated $1130 to charities, paid $5550 in mortgage...

I just need to know where to start for this question. I know it is binomial distribution, but I don't how to calculate the formulas 1.Question 3. A person claims to be able to distinguish...

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