Chapter 2 key terms Flashcards
observation
a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept.
hypothesis
a testable idea or explanation that leads to scientific investigation
prediction
a statement made in advanced that expresses the results that will be obtained from testing a hypothesis if they hypothesis is supported the expected outcome if a hypothesis is accurate
variable
a factor that changes in an experiment in order to test a hypothesis
experimental group
in an experiment, a group that is identical to a control group except for one factor and that is compared with the control group
control group
in an experiment, a group that serves as a standard of comparison with another group to which the control group is identical except for one factor
data
any pieces of information acquired through observation or experimentation
correlation
a mutual relationship or connection between two or more things.
statistics
a fact or piece of data from a study of a large quantity of numerical data.
mean
as its signification in the same language or its equivalent in another language.
distribution
the action of sharing something out among a number of recipients.
probability
the extent to which something is probable; the likelihood of something happening or being the case.
sample
a small part or quantity intended to show what the whole is like.
risk
a situation involving exposure to danger.
model
a three-dimensional representation of a person or thing or of a proposed structure, typically on a smaller scale than the original.
