CNSL 503 MODULE 1 Exam With
Correct Detailed And Verified Answers
What are statistics? - ANSWERS-Statistics encompass the mathematical field that
allows us to organize, summarize, describe, and interpret different forms of information.
Name 3 reasons why statistics are important - ANSWERS-1. Statistics allow data to be
described and communicated succinctly and concisely.
2. Statistics allow inferences to be drawn about data, particularly when it is not feasible
to collect information from all members of a certain group.
3. Statistics equip us with the necessary tools needed to critically evaluate information.
Qualitative variables - ANSWERS-Variables measured in non-numerical terms, using
categories or labels
Quantitative variables - ANSWERS-Variables measured in numerical terms
Discrete variables - ANSWERS-Those that hold discrete values, such that they can be
organized into separate categories or counted using whole numbers
Continuous variables - ANSWERS-Variables that can theoretically be broken down into
infinitely smaller, fractional components
Name at least 3 examples of qualitative variables - ANSWERS-One's religion, ethnicity,
eye color, and career
Name at least 3 examples of quantitative variables - ANSWERS-Weight, height, heart
rate, and test scores
Describe the important variables involved in an experimental study - ANSWERS-The
variable that is manipulated in an experiment is known as the independent variable, and
the variable that is measured for any observable effect is known as the dependent
variable. A control variable is a variable that remains unchanged throughout the
experiment. Extraneous, or confounding, variables include any variables that could
unintentionally affect the dependent variable.
Suppose you want to study the effects of a genetically modified diet on the weight of
dogs.
Give at least 3 examples of extraneous variables.
Correct Detailed And Verified Answers
What are statistics? - ANSWERS-Statistics encompass the mathematical field that
allows us to organize, summarize, describe, and interpret different forms of information.
Name 3 reasons why statistics are important - ANSWERS-1. Statistics allow data to be
described and communicated succinctly and concisely.
2. Statistics allow inferences to be drawn about data, particularly when it is not feasible
to collect information from all members of a certain group.
3. Statistics equip us with the necessary tools needed to critically evaluate information.
Qualitative variables - ANSWERS-Variables measured in non-numerical terms, using
categories or labels
Quantitative variables - ANSWERS-Variables measured in numerical terms
Discrete variables - ANSWERS-Those that hold discrete values, such that they can be
organized into separate categories or counted using whole numbers
Continuous variables - ANSWERS-Variables that can theoretically be broken down into
infinitely smaller, fractional components
Name at least 3 examples of qualitative variables - ANSWERS-One's religion, ethnicity,
eye color, and career
Name at least 3 examples of quantitative variables - ANSWERS-Weight, height, heart
rate, and test scores
Describe the important variables involved in an experimental study - ANSWERS-The
variable that is manipulated in an experiment is known as the independent variable, and
the variable that is measured for any observable effect is known as the dependent
variable. A control variable is a variable that remains unchanged throughout the
experiment. Extraneous, or confounding, variables include any variables that could
unintentionally affect the dependent variable.
Suppose you want to study the effects of a genetically modified diet on the weight of
dogs.
Give at least 3 examples of extraneous variables.
