CNSL 503 - Module 1 EXAM Questions
and Answers Graded A+
What are statistics? - Correct answer-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 - Correct answer-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 - Correct answer-Variables measured in non-numerical terms,
using categories or labels
Quantitative variables - Correct answer-Variables measured in numerical terms
Discrete variables - Correct answer-Those that hold discrete values, such that they
can be organized into separate categories or counted using whole numbers
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, Continuous variables - Correct answer-Variables that can theoretically be broken
down into infinitely smaller, fractional components
Name at least 3 examples of qualitative variables - Correct answer-One's religion,
ethnicity, eye color, and career
Name at least 3 examples of quantitative variables - Correct answer-Weight,
height, heart rate, and test scores
Describe the important variables involved in an experimental study - Correct
answer-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.
Explain why the variables are extraneous.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
and Answers Graded A+
What are statistics? - Correct answer-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 - Correct answer-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 - Correct answer-Variables measured in non-numerical terms,
using categories or labels
Quantitative variables - Correct answer-Variables measured in numerical terms
Discrete variables - Correct answer-Those that hold discrete values, such that they
can be organized into separate categories or counted using whole numbers
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Continuous variables - Correct answer-Variables that can theoretically be broken
down into infinitely smaller, fractional components
Name at least 3 examples of qualitative variables - Correct answer-One's religion,
ethnicity, eye color, and career
Name at least 3 examples of quantitative variables - Correct answer-Weight,
height, heart rate, and test scores
Describe the important variables involved in an experimental study - Correct
answer-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.
Explain why the variables are extraneous.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
