BIO 201 summary statistics
independent variable
changed by the experiment
dependent variable
the things that the scientist focuses his observations on to see how they respond to the
independent variable
controlled variable
quantities that a scientist wants to remain constant
measurment variables
continuous
discontinuous
continuous variable
a quantitative variable that has an infinite number of possible values that are not countable
discontinuous variable
one which can only take certain values
Ranked Variables
Variables for which the individual observations can be put in order from smallest to largest,
even though the exact values are unknown.
attributes
cannot be measured or ranked
Data
Most data in science are counts or measurements
Data are used to address scientific question
statistical population
a group of similar things that a scientist is interested in learning about
Sample
independent variable
changed by the experiment
dependent variable
the things that the scientist focuses his observations on to see how they respond to the
independent variable
controlled variable
quantities that a scientist wants to remain constant
measurment variables
continuous
discontinuous
continuous variable
a quantitative variable that has an infinite number of possible values that are not countable
discontinuous variable
one which can only take certain values
Ranked Variables
Variables for which the individual observations can be put in order from smallest to largest,
even though the exact values are unknown.
attributes
cannot be measured or ranked
Data
Most data in science are counts or measurements
Data are used to address scientific question
statistical population
a group of similar things that a scientist is interested in learning about
Sample
