We are asked how to record the weight.

We have to get the average of the weights.

A digital bathroom scale gives you the following four readings in a row: 168.4, 168.0, 168.1, 168.0 lbs. How would you record your weight? Express your answer using appropriate number of significant figures.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Significant Figures: In Calculations concept. You can view video lessons to learn Significant Figures: In Calculations. Or if you need more Significant Figures: In Calculations practice, you can also practice Significant Figures: In Calculations practice problems.