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the levels (in ppm) were determined using a new method and standard method. Values of lead ( in ppm) shown in the Table below were obtained for containment soil samples using both methods

New metuod lin ppm) 397 Standud Metucd (ppm) 400 380 395 390 385 388 396 395 382 392 398 114 7 a) Do these two methods give r

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Auswen New method (ppm) standand Method (ppm) 400 397 380 395 385 390 388 395 392 396 382 398 Meanz Meanz 3917 +380 +390+388+

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