Question

Using the information you've learned in this exercise, explain how to determine the correct precision to record when taking readings from analog measuring devices.

a) Measure the device's dimensions
b) Consult the manufacturer's manual
c) Round to the nearest whole number
d) Always use decimals for precision

Answer 1

To determine the correct precision for analog measuring devices, analyze the measured values, perform necessary calculations, and round to one more decimal place than present in the original data.

Step-by-step explanation:

When determining the correct precision to record when taking readings from analog measuring devices, several steps can be followed:

1. First, analyze the measured values to determine the number of significant figures based on the precision of the measuring device. For example, if using a ruler with millimeter markings, the measurement can be reported to the nearest millimeter.
2. Next, perform any necessary calculations and round the final answer to one more decimal place than was present in the original data. This ensures that the reported statistic is consistent with the level of precision of the measurements.
3. Finally, always remember to include the correct units for the measurement. When multiplying or dividing measurements, the units should also be multiplied or divided accordingly.

By following these steps, you can accurately determine the appropriate precision to record when using analog measuring devices.