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October 9th, 2018, 08:42 PM  #1 
Member Joined: Nov 2010 Posts: 97 Thanks: 1  Percentile Rank
Hello guys, I already completed this; however, I am having extreme difficulty with problems #4 and #5. Would I use the formula X=µ+z(sigma)? If not, what formula should I use? I'm so confused. 

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