Use simple and complex mathematical relationships that exist between data.
Experimental design adapted from Manupati Prasanth, “Antimicrobial Efficacy of Different Toothpastes and Mouthrinses: An In Vitro Study.” © 2011 by Dental Research Journal. PMC3177399
A student treated E. coli with a 1:4 dilution of Toothpaste 4. Based on the data of Toothpaste 1 in tables 1 and 2, which of the following was most likely the average inhibition zone diameter in this experiment?
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