An Analyst Is Assigned a Blind Quality Control Sample of Blood

question 12

Multiple Choice

An analyst is assigned a blind quality control sample of blood containing a drug metabolite. He tests ten separate portions and obtains the following data for the concentration in ug/mL:
25.2
24.8
26.6
27.0
24.0
26.0
25.5
26.3
24.9
23.9
Calculate the population standard deviation and report to three significant figures. Use a spreadsheet or calculator.

• A) 1.00
• B) 1.06
• C) 9.95
• D) 1.22
• E) 0.106

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