Significant figures rounding

There are three significant figures in the denominator and two in the numerator. The answer should have two significant figures round off the average speed to be... 

Note that we had to calculate to one significant figure, rounding down the 94% to 90%, which here makes a large difference to the answer.) The cell envelope must account for 10% of the total volume of this bacterium. 

In this case the answer must have two significant figures. Rounding off, 26.832 becomes 27—no decimals at all ... 

Returning to the original problem, when you divide 5.31 by 8.568, you get 0.61974789915966386554621848739496 on your calculator. However, because you used the mathematical operation division, your answer must have just three significant figures. Rounding off 0.6197 becomes 0.620. 

Carry out each of the following calculations, paying special attention to significant figures, rounding, and units (J = joule, the SI unit of energy mol = mole, the SI unit for amount of substance) ... 

Carry out each of the following calculations, paying special attention to significant figures, rounding, and units ... 

When rounding numbers to the correct number of significant figures, round down if the last digit dropped is 4 or less round up if the last digit dropped is 5 or more. 

On entering SigmaPlot (we use version 5.0), one is presented with a data table that is essentially a spreadsheet. Enter T as the independent or A -variable into the first eolumn of the SigmaPlot data table and Cp/T as the dependent or y-variable into the second column. The SigmaPlot data table should resemble columns 1 and 3 of Table 1-3. Rounding to three significant figures is permissible. 

Round each of the following to three significant figures,... 

Note that seven figures are retained in the calculation until the final stage, when the numbers are rounded to six significant figures. 

Note that, since 5q is given, effectively, to six significant figures, the calculation has been done to seven figures and rounded to six at the final stage. 

Table 6-1 lists the experimental quantities, k, T, ct, the transformed variables x, y, and the weights w. (It is necessary, in least-squares calculations, to carry many more digits than are justified by the significant figures in the data at the conclusion, rounding may be carried out as appropriate.) The sums required for the solution of the normal equations are... 

Round off the following quantities to the indicated number of significant figures. 

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