Exam (elaborations)
WGU C784-Statistics Mod 5 Exam Questions and Answers (Latest Update 2024)
- Course
- Institution
WGU C784-Statistics Mod 5 Exam Questions and Answers (Latest Update 2024)
[Show more]
Content preview
WGU C784-Statistics Mod 5 ExamQuestions and Answers (Latest Update
2024)
When one variable causes change in another, we call the first
variable the ___________________ variable*.
The affected variable is called the _______________ variable*. -
Correct Answer ✅When one variable causes change in
another, we call the first variable the explanatory variable*.
The affected variable is called the response variable*.
In a randomized experiment, the researcher manipulates
values of the explanatory variable and measures the resulting
changes in the response variable. The different values of the
explanatory variable are called treatments. An experimental
unit is a single object or individual to be measured.
A two-way table, also known as a two-way frequency table or
contingency table, is used to show the relationship between
two ______________________variables ( C→C ); the rows show
the categories of one variable, and the columns show the
categories of the other variable. - Correct Answer
✅categorical variables ( C→C )
,WGU C784-Statistics Mod 5 Exam
Questions and Answers (Latest Update
2024)
______________________. These represent the total number of
instances that fall in both the corresponding row and header.
The data in the green cells show
_______________________________. These are equal to the sum of
the number of individuals in the corresponding row or
column. - Correct Answer ✅The cells in yellow show joint
frequencies*. These represent the total number of instances
that fall in both the corresponding row and header.
For example, data in the "Male" row and "With Autism"
column counts the number of males with autism.
The data in the green cells show marginal frequencies*.
These are equal to the sum of the number of individuals in
the corresponding row or column. For example, data in the
"Totals" column and "Female" row shows the total number of
females in the study. It may be helpful to remember that
marginal frequencies appear in the margins of the table.
, WGU C784-Statistics Mod 5 Exam
Questions and Answers (Latest Update
2024)
The bottom, right cell (in both the "Totals" column and the
"Totals" row) measures the total number of individuals in the
study.
The relationship between two variables that are both
quantitative can be displayed in a __________________________.
- Correct Answer ✅scatterplot;
As we've seen earlier, every point on a coordinate plane can
be represented by an ordered pair*, ( x , y ). Here, the x -
value is typically the _________________variable's value for a
piece of data, and the y -value is the corresponding value for
the ________________________variable. A simple way to
remember this fact is that the term "explanatory" has an " x "
in it. - Correct Answer ✅explanatory variable; response
variable
Side-by-side box plots are a good choice for two-variable data
where the explanatory variable is ____________ data and the
response variable is ____________ data. - Correct Answer
✅Categorical
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Allivia. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79064 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now