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Mathematics, 30.06.2019 11:30 Maggy1908
Tim worker is doing his budget. he discovers that the average electric bill for the year was $206 with a standard deviation of $10.00. what percent of his expenses in this category would he expect to fall between $184.00 and $200.00? the z for $184.00 = - .62.22 the percent of area associated with $184.00 = 62.2 the z for $200 = - .622.22 the percent of area associated with $200 = 48.6 subtracting the two percentages, the percent of expenses between $184.00 and $200.00 is 622.22 you in advance for your .god bless you all
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