Respuesta :
Using the average or mean formula, a possible value which would ensure normal absorbency is 7.5 mL
Given the Parameters :
- Reading 1 = 6.3 mL
- Reading 2 = 7.2 mL
- Reading 3 = x
The value of the third reading must ensure that the average absorbency value is between 6 and 8 mL :
Assume an average value of 7 :
(6.3 + 7.2 + x) / 3 = 7
Cross multiply
13.5 + x = 7 × 3
13.5 + x = 21
x = 21 - 13.5
x = 7.5
Therefore, a possible value of x could be 7.5 mL
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