Ch.2 key term

Is a piece of information we gather using our sense - our sight, hearing, smell, and touch to extend their sense.

Is a testable idea or explanation that lead to a scientific investigation

a logical statement about what will happen if the hypothesis is supported

is a procedure designed to test a hypothesis under controlled conditions

is the factor of intrested, which in our example, would be the level of phosphate in the water

the experimental group would br thoes mussels that receive phosphate in their water

the control group would be thoes mussels that do not have phosphate added to their water

the information that a scientist gather during an experiment, which is often in numeric from is called data

or association between two or more events scientists know that the relative width of a ring on a tree trunk is a good indicator of the amount of rainfall receives in a year

is the colloection and classifcation of data that are in the form of number

the mean is the numbers obatined by adding the data for a characteristic and dividing this sum by the number of individuals

a distribution is the relative arrangement of the members of a statistical population

if you toss a penny, what is the probablilty that it will come up heads?

sample is a group of individuals or events slectced to represent the population

is the probablilty of an unwated outcome if you have no clue about the correct answer on a multiple choice test with four options

are repensted of objects or system

is a verbal or graphical explanation of how a system work or is organized

is an abstract model that uses mathematical language to describe the behaviour of a system.

nature has a value based on what can be extracted. Things valued as a means to something else.

A decision-making model is a conceptual model that provides a systematic process for making decisions.