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Pearson Interactive Science Book 1 Chp. 2 lsn 2
Vocabulary Terms
10
Science
6th Grade
10/20/2012

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Term
estimate
Definition
approximation (guess) of a number based on reasonable assumptions.
Term
accuracy
Definition
how close a measurement is to the true or accepted value.
Term
precision
Definition
refers to how close a group of measurements are to each other.
Term
significant figures
Definition
communicate how precise measurements are. Significant figures in a measurement include all digits measured exactly, plus one estimated digit.
Term
percent error
Definition
a way to determine how accurate an experimental value is. lower is more accurate-higher is less accurate.
Term
mean
Definition
the average of a set of numbers. Step 1 add all numbers together. Step 2 divide by the total numbers added.
Term
median
Definition
the middle number in a set of data.
Term
mode
Definition
the number that occurs most.
Term
range
Definition
the difference between the largest number and the smallest number in a set of data.
Term
anamalous data
Definition
data that do not fit with the rest. (an outlier)
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