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7 Sci Ch 1-4 vocab

7th Grade Science Chapter 1 Lesson 4

TermDefinition
estimate An approximation of a number based on reasonable assumption.
accuracy How close a measurement is to the true or accepted value.
precision How close a group of measurements are to each other.
significant figures All the digits in a measurement that have been measured exactly, plus on digit whose value has been estimated.
percent error A calculation used to determine how accurate, or close to the true value, an experimental value really is.
mean The numerical average of a set of date.
median The middle number in a set of data.
mode The number that appears most often in a list of numbers.
range The difference between the greatest value and the least value in a set of data.
anomalous data Data that do not fit with the rest of a data set.
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