Reasoning and Evidence - Practice
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Which sentence is a non-proposition?
- If the burglar did not go out the front door, they must have gone out a
window.
- The earth is the third planet from the sun.
- Where are the keys to my car?
- Mount Everest is the tallest mountain in the world. - ✔✔ANSWER✔✔-Where
are the keys to my car?
Did the company really close that deal? It has had a great year. Where is the
president right now? Let's go ask whether the deal was closed.
,In the above paragraph, which sentence expresses a proposition?
- Where is the president right now?
- Did the company really close that deal?
- Let's go ask whether the deal was closed.
- It has had a great year. - ✔✔ANSWER✔✔-It has had a great year.
Simple propositions - ✔✔ANSWER✔✔-Simple propositions have no internal
logical structure, meaning whether they are true or false does not depend on
whether part of them is true or false. They are simply true or false on their
own.
Complex propositions - ✔✔ANSWER✔✔-Complex propositions have internal
logical structure, meaning they are composed of simple propositions. Whether
they are true or false depends on whether their parts are true or false.
If the new employee wants to succeed, then they need to show up on time.
How many times have we heard the manager complain about tardiness?
Nobody likes a 7 a.m. start time, but it was in the job description. We should
remind the new employee how important this is.
Which is a simple proposition that is expressed in the above paragraph?
- The new employee wants to succeed.
- How many times have we heard the manager complain about tardiness?
- The employees look out for each other.
- If the new employee wants to succeed, then they need to show up on time. -
✔✔ANSWER✔✔-The new employee wants to succeed.
,The U.S. healthcare system is difficult to navigate, and this negatively affects
many of us. Many people are unsure exactly how their health insurance
coverage works and are not sure where they can go to get care. What can be
done to improve this? If changes are not made soon, the problem will only get
worse.
Which is a simple proposition that is expressed in the above paragraph?
- Many people are not sure where they can go to get care.
- The U.S. healthcare system is difficult to navigate, and this negatively affects
many of us.
- What can be done to improve this?
- Many people are unsure exactly how their health insurance coverage works
and are not sure where they can go to get care. - ✔✔ANSWER✔✔-Many
people are not sure where they can go to get care.
Bad inferential structure - ✔✔ANSWER✔✔-Every argument with the same
structure as this argument is bad (invalid or weak). The premises do not, in
fact, demonstrate or maybe even support the conclusion. In other words, we
can accept the premises as true without being compelled to accept the
conclusion. There is something wrong with this argument's general structure.
False premise - ✔✔ANSWER✔✔-This particular argument has a
premise/assumption that is false. There is something wrong with this
argument's particular content.
Conclusion Indicators - ✔✔ANSWER✔✔-Therefore, so, it follows that, hence,
thus, entails that, we may conclude that, implies that, wherefore, as a result
Premise Indicators - ✔✔ANSWER✔✔-Because, for, given that, in that, as,
since, as indicated by
, "Since we cannot go out until the restaurant opens, and given that we are
trying to save money, we should just hang out here until closer to dinner."
Which statements are the premises of the following argument? Choose 2
answers.
- We cannot go out until the restaurant opens.
- We are trying to save money.
- We should just hang out here until closer to dinner.
- We can have a good time without spending money. - ✔✔ANSWER✔✔-- We
cannot go out until the restaurant opens.
- We are trying to save money.
Most students in the class scored less than 70% on the exam. This means that
the exam was too difficult to accurately assess student learning. Therefore, as
exams are supposed to accurately assess student learning, the exam must be
revised and readministered.
Which statement is the conclusion of the above argument?
- The exam must be revised and readministered.
- Some students in the class scored higher than 70% on the exam.
- Exams are supposed to accurately assess student learning.
- Most students in the class scored less than 70% on the exam. -
✔✔ANSWER✔✔-The exam must be revised and readministered.
Which sentences are arguments? Choose 2 answers.