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# IED_Key_Terms_U-3

### IED_Key_Terms_Unit3

TermDefinition
Accuracy The degree of closeness of measurements to the actual
Arrowheads Used to indicate the end of a dimension line
Caliper A measuring instrument with two adjustable jaws
Class Interval A group of values that is used to analyze
Convert To change money, or units which a quantity is expressed into another kind
Data Facts, statistics used for reference
Data Set A group of individual values or bits of information
Dimension A measurable extent, such as the three principal dimensions of an object
Dimension line A line which represents distance
Dot Plot See line plot
Frequency the rate at which something occurs over a particular period
Graph A diagram showing the relation between variable quantities, typically of two variables
Histogram A graph of vertical bars representing the frequency distribution of a set of data
International Organization for Standardization (ISO) A non-governmental global organization whose principal activity is the development of technical standards.
International System of Units (SI) An international system of units of measurement consisting of seven base units
Line Plot A method of visually displaying a distribution of data values where each data value is shown as a dot or mark above the number line.
Mean A measure of center in a set of numerical data computed by adding the values and then dividing by the number of values in the list.
Measure To determine the size, amount, or degree of an object by comparison with a standard unit.
Median A measure of center in a set of numerical data. Is at the center of a list.
Mode The value that occurs most frequently in a given data set.
Normal Distribution A function that represents the distribution of variables as a symmetrical bell-shaped graph.
Numeric Constant A number value or algebraic equation on that is used to control the size or location of a geometric figure
Precision The degree to which repeated measurements show the same result
Scale A straight-edged strip of rigid material marked at regular intervals and used to measure distances
Scatter Plot A graph in the coordinate plane representing a set of bivariate data
Significant Digits The digits in a decimal number that carry meaning contributing to the precision or accuracy of the quantity
Standard Deviation the distance of a value in a population (or sample) from the mean value of the population (or sample)
Statistics Collection of methods for planning experiments, obtaining data
Unit A standard quantity in terms of which other quantities may be expressed.
US Customary Measurement System System of measurement used in the United States
Created by: 1024061