household chemicals together. Accuracy is the magnitude in which a certain measurement agrees with the standard worth for that measurement (Dictionary‚ 2011). Precision is how close the measured standards are to each other (Math is fun‚ 2011). Society depends on accuracy and precision in everyday life. These two relationships are often substituted freely‚ but both have crucial differences. Businesses entail both accurate and precise measurements to stay in business. Accuracy states that something is
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in presence of a base to yield phenylthiourea derivative. This derivative showed maximum absorbance at 240 nm. Beer’s law is obeyed in the concentration range of 5-25 µg/ml. The method was validated in terms of linearity‚ precision (relative standard deviation 1.1%)‚ accuracy and specificity. The proposed method is the only method available for spectrophotometric determination of the drug. It is simple‚ precise‚ accurate‚ sensitive and reproducible and can be used for the routine quality control
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the US should continue their use of drones in warfare. The use of drones in warfare should continue to be used by the US because they have multiple advantages. One of the reasons why drones are a huge benefit for the US is because of their precision and accuracy. An article that is in favor of the US continuing their use of drones in warfare states‚ “... since the United States began conducting drone strikes abroad following the Sep. 11‚ 2001 attacks‚
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6429 Ω (from the graph) ΔS = |S1 - S2| / 2 = | (-0.4714 - (-0.6429)) | / 2 = 0.08580 Ω (cor. to 4 sig. fig) _THE INTERNAL RESISTANCE OF THE BATTERY ± Δ INTERNAL RESISTANCE OF THE BATTERY = 0.5223 Ω ± 0.08580 Ω_ (COR. TO 4 SIG. FIG) Percentage precision = (1.000 - 0.08580 /0.5223) x 100% = 83.57% (cor. to 4 sig. fig) _THE EMF OF THE BATTERY_ Uncertainty for intercept vertical axis From the graph above (Voltage against Current) Intercept vertical axis of the best-fit line = 1.2969 V (from the
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Experiment 2 CALIBRATION OF A PIPETTE Introduction An ordinary laboratory pipette may be expected to deliver its nominal volume with good precision and good accuracy if it is used in the way recommended. In this experiment we investigate the precision and accuracy of such a pipette by making accurate determinations of the mass of water it delivers in repeated operations. Materials 10.0-cm3 pipette‚ 50-cm3 beaker‚ thermometer‚ pipette filler‚ graph paper. Procedure
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several ailments and surgeries are performed through the instructions communicated from one part of the world to other and with the help of robotic aids several critical surgeries are undertaken with minimal pain to the patient and with great precision and accuracy. Technology can also be used for negative purposes such as warfare leading to mass destruction and this should be avoided as all the developments which have taken shape
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WebMD’s website on ADHD I have come to realize that the information is accurate‚ current‚ and provides a complete overview of the topic at hand. The definition of Accuracy is defined as‚ “the condition or quality of being true‚ correct‚ or exact; freedom from error or defect; precision or exactness; correctness.” (dictionary.com) Accuracy is important when dealing with any type of information; but more so when dealing with medical information. WebMD provides us with link where we can contact the author
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0.03 g/cm^3. The results for this experiment prove that as you increase % of NaCL‚ the density increases also because of the weight of NaCL is increased. Graph #1 shows that as the %NaCL increased so did the density‚ therefore proving the accuracy and precision of part II calculations. In part III‚ of the experiment‚ the density of regular shaped objects‚ were calculated based on volume measured method and water displacement method. My hypothesis for this part of the experiment was that volume measured
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three years. This article uses the straight sell tactic. The article consists of a straightforward and clear presentation of the digital watch and its benefits. The advertisement clearly explains the features of the watch such as its precision and accuracy‚ differentiating it from other watches. The article actually states that‚ "if you travel-this watch is a necessity" (People‚ 2003). The advertisement also uses the educational tactic. The ad offers a detailed explanation of the digital
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the tip . When the operating button is pressed again ‚ the piston descends ‚ expelling the liquid from the tip. We need to optimize volume range by selecting the correct volume pipette . We must work in the 35% to 100% volume range for best accuracy and precision . Besides that ‚ the tip immersion angle also plays an important role . Nextly‚ the micrometer setting must be done using the correct technique . If filled ‚ we should not lay the pipette down or hold more than 20º from vertical . Lastly
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