Flashcards - NES General Science: Scientific Data & Analysis

Flashcards - NES General Science: Scientific Data & Analysis
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precision
Precision is a description of random errors, a measure of statistical variability
line graph
In the mathematical discipline of graph theory, the line graph of an undirected graph G is another graph L that represents the adjacencies between edges of G
scientific method
The scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge
outlier
In statistics, an outlier is an observation point that is distant from other observations
population
A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding
sample
In statistics and quantitative research methodology, a data sample is a set of data collected and/or selected from a statistical population by a defined procedure
standard deviation
In statistics, the standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values
bar graph
A bar chart or bar graph is a chart that presents grouped data with rectangular bars with lengths proportional to the values that they represent
scatter plot
A scatter plot is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data
liter
The litre or liter is an SI accepted metric system unit of volume equal to 1 cubic decimetre , 1,000 cubic centimetres or 1/1,000 cubic metre
metric system
The metric system is an internationally agreed decimal system of measurement
meniscus
In anatomy, a meniscus is a crescent-shaped fibrocartilaginous structure that, in contrast to an articular disk, only partly divides a joint cavity
Scientific notation
Scientific notation is a way of expressing numbers that are too big or too small to be conveniently written in decimal form
significant figure
The significant figures of a number are digits that carry meaning contributing to its measurement resolution
pie chart
A pie chart is a circular statistical graphic, which is divided into slices to illustrate numerical proportion
table
A table is a collection of related data held in a structured format within a database
Internal validity
In scientific research, internal validity is the extent to which a causal conclusion based on a study is warranted, which is determined by the degree to which a study minimizes systematic error
degrees Celsius
Celsius, also known as centigrade, is a scale and unit of measurement for temperature
meter
The metre, or meter , is the base unit of length in the International System of Units
flow chart
A flowchart is a type of diagram that uses an algorithm, workflow or process, showing the steps as boxes of various kinds, and their order by connecting them with arrows
descriptive
In the study of language, description or descriptive linguistics is the work of objectively analyzing and describing how language is actually used by a group of people in a speech community
inferential
Statistical inference is the process of deducing properties of an underlying distribution by analysis of data
correlation coefficient
A correlation coefficient is a number that quantifies some type of correlation and dependence, meaning statistical relationships between two or more random variables or observed data values

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