7th grade science Chapter 2 section 2 Vocab

An approximation of a number based on reasonable assumptions.

• Accuracy

• Estimate

• Precision

• Mean

How close a measurement is to the true or accepted value.

• Accuracy

• Range

• Mode

• Estimate

How close a group of measurements are to each other.

• Precision

• Mean

• Median

• Percent error

All the digits in a measurement that have been measured exactly, plus one digit whose value has been estimated.

• Significant figures

• Anomalous data

• Range

• Mode

A calculation used to determine how accurate or close to the true value, an experimental value really is.

• Percent error

• Estimate

• Median

• Range

The numerical average of a set of data.

• Mean

• Mode

• Median

• Range

The middle number in a set of data.

• Median

• Mode

• Mean

• Range

The number that appears most often in a list of numbers.

• Mode

• Mean

• Median

• Range

The difference between the greatest value and the least value in a set of data.

• Range

• Mean

• Median

• Mode

Data that do not fit with the rest of a data set.

• Anomalous data

• Significant figures

• Estimate

• Precision