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Mathematics, 10.03.2020 20:16 daniellekennedy05
An investigator wants to use a straight line to predict IQ from lead levels in the blood, for a representative group of children aged 5–9.14 There is a weak positive association in the data. Answer true or false:a. He can use many different lines. b. He has to use the regression line. c. Only the regression line has an r. m.s. error. d. Any line he uses will have an r. m.s. error. e. Among all lines, the regression line has the smallest r. m.s. error.
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An investigator wants to use a straight line to predict IQ from lead levels in the blood, for a repr...
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