Megan's science teacher gave each student in her class a 20.0 gram sample of sedimentary rock. Each student is required to verify the rock sample by taking four mass measurements. Which measurement is the most accurate of the four recorded?

What are the measurements?

kknhk

Megan's science teacher gave each student in her class a 20.0 gram sample of sedimentary rock. Each student is required to verify the rock sample by taking four mass measurements. Which measurement is the most accurate of the four recorded?

To determine which measurement is the most accurate, we need to understand the concept of accuracy and precision in measurements. Accuracy refers to how close a measured value is to the true value, while precision refers to how close multiple measurements of the same quantity are to each other.

In this case, Megan's science teacher gave each student a 20.0 gram sample of sedimentary rock, and each student took four mass measurements. To determine the most accurate measurement, we can compare the measurements and look for consistency.

Here's how you can determine the most accurate measurement among the four recorded:

1. Collect the four mass measurements.
2. Calculate the average (mean) of the four measurements by adding them all together and dividing by four.
3. Calculate the deviation of each measurement from the average. To do this, subtract the average from each individual measurement.
4. Calculate the absolute value of each deviation (ignoring any negative signs).
5. Compare the absolute deviations. The measurement with the smallest absolute deviation from the average is the most precise.
6. Finally, look at the measurements that have the smallest absolute deviation and determine if any are closer to the expected value of 20.0 grams. The measurement closest to 20.0 grams would be the most accurate.

By following these steps and analyzing the data, you will be able to identify the most accurate measurement from the four recorded mass measurements.