CNSL 503 MODULE 1 EXAM 100%
SOLVED
Statistics - ANSWEREncompasses the mathematical field that allows us to organize,
summarize, describe, and interpret different forms of information
Data (datum) - ANSWERSmall and large sets of information
What are statistics important? - ANSWER1) allows data to be described and
communicated succinctly and concisely
2) means by which researchers communicate their work with one another and the
general public, clear and understandable
3) allow inferences to be drawn about data, particularly when it is not feasible to collect
info from all members of a certain group
4)equip us with the necessary tools needed to make everyday decisions
Variable - ANSWERMeasurable characteristics that can vary in value
Qualitative variable - ANSWERNon-numerical terms, using labels or categories
(religion, ethnicity, eye color, career)
Quantitative variable - ANSWERMeasured in numerical terms (weight, height, hr rate,
test score)
Discrete variable - ANSWERquantitative variable that is organized by whole numbers
(0,1,2,3...) (number of people, children, animals)
independent variable - ANSWERVariable that is manipulated in an experiment
Dependent variable - ANSWERThe variable that is measured for any observation effect
Control variable - ANSWERA variable that remains unchanged throughout the
experiment
Extraneous or confounding variables - ANSWERInclude any variables that could
unintentionally affect the dependent variable
Qualitative variables are measured by - ANSWERNominal or ordinal scales
Nominal scale - ANSWERVariables that provide categorical info (blood type, college
majors, room numbers) (not greater than or less than)
SOLVED
Statistics - ANSWEREncompasses the mathematical field that allows us to organize,
summarize, describe, and interpret different forms of information
Data (datum) - ANSWERSmall and large sets of information
What are statistics important? - ANSWER1) allows data to be described and
communicated succinctly and concisely
2) means by which researchers communicate their work with one another and the
general public, clear and understandable
3) allow inferences to be drawn about data, particularly when it is not feasible to collect
info from all members of a certain group
4)equip us with the necessary tools needed to make everyday decisions
Variable - ANSWERMeasurable characteristics that can vary in value
Qualitative variable - ANSWERNon-numerical terms, using labels or categories
(religion, ethnicity, eye color, career)
Quantitative variable - ANSWERMeasured in numerical terms (weight, height, hr rate,
test score)
Discrete variable - ANSWERquantitative variable that is organized by whole numbers
(0,1,2,3...) (number of people, children, animals)
independent variable - ANSWERVariable that is manipulated in an experiment
Dependent variable - ANSWERThe variable that is measured for any observation effect
Control variable - ANSWERA variable that remains unchanged throughout the
experiment
Extraneous or confounding variables - ANSWERInclude any variables that could
unintentionally affect the dependent variable
Qualitative variables are measured by - ANSWERNominal or ordinal scales
Nominal scale - ANSWERVariables that provide categorical info (blood type, college
majors, room numbers) (not greater than or less than)
