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3) [ 10 pts] The mean electrical energy consumption for Mr. Triola's home for the past two months is 2838 Kilowatt hours (kwhr) with a

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3) [ 10 pts] The mean electrical energy consumption for Mr. Triola's home for the past two months is 2838 Kilowatt hours (kwhr) with a standard deviation of 504 kwhr. If Mr Triola's energy consumption follows a bell shaped distribution, about 68% of his electrical usage falls between which two consumption values? What percentage of his electrical energy consumption falls between 3342 kwhr and 3846 kwhr ? 4) [ 10 pts] The following sample data represent the travel time ( in minutes) to Sullivan College for nine students: 39,21,9,32,39,45,11,12,30. Compute the mean, mode, and range, for the above data. [ Extra credit: What is the shape of the distribution?] 5) [ 10 pts] Armando is filling in college applications. He has recently taken the SAT and the ACT Exams. In the SAT Mathematics he scored 610. The mean for SAT Mathematics is 515 with a standard deviation of 114. In the ACT Mathematics he scored 27. The mean for the ACT Mathematics is 21.0 with a standard deviation of 5.1. Which score is relatively better, the SAT or the ACT

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