WGU D265 QUESTIONS AND THEIR
CORRECT ANSWERS
Proposition
are expressed in sentences that can be either true or
false.
Non-proposition
are expressed in sentences that cannot be either true or
false.
Argument
A statement put forth and supported by evidence
Non-Argument
does not attempt to persuade you of a conclusion through
reasoning, and thus doesn't qualify as part of an argument
Premise Indicator words
because, for, given that, as, since, as indicated by
Conclusion Indicator words
therefore, so, it follows that, thus, we may conclude that,
as a result
Deductive Arguments
guarantee the truth of the conclusion
Deductive Arguments example
all fruits are sweet.
tomatoes are fruit.
therefore, tomatoes are sweet.
Valid Argument
premises are true = conclusion must be true
Valid Argument examples
, Ralph is a dog. Dogs are not allowed on rollercoasters.
Therefore, Ralph is not allowed on rollercoasters.
Invalid Argument
a deductive argument that does not offer logically
conclusive support for the conclusion
Invalid Arguments Examples
Everything I touch turns to gold.
Your dog is a thing I can touch.
Therefor, if I touch your dog, it will turn to gold.
Sound Argument
valid with true premise
Sound Argument Examples
All people will die. Trump is a person. Trump will die.
Unsound Argument
a deductive argument that is invalid, has one or more false
premises, or both
Unsound Argument Examples
All cats are mammals. All mammals are animals.
Therefore, all cats are dogs.
Inductive Arguments
give probable support to the conclusion
Inductive Arguments examples
it looks like a duck.
it quacks like a duck.
therefore, it probably is a duck.
Strong Arguments
premises are true = conclusion likely to be true
Strong Arguments Example
Most employees of this company are under 30 years old.
Tom is an employee of this company. Therefore, Tom is
probably under 30 years old.
CORRECT ANSWERS
Proposition
are expressed in sentences that can be either true or
false.
Non-proposition
are expressed in sentences that cannot be either true or
false.
Argument
A statement put forth and supported by evidence
Non-Argument
does not attempt to persuade you of a conclusion through
reasoning, and thus doesn't qualify as part of an argument
Premise Indicator words
because, for, given that, as, since, as indicated by
Conclusion Indicator words
therefore, so, it follows that, thus, we may conclude that,
as a result
Deductive Arguments
guarantee the truth of the conclusion
Deductive Arguments example
all fruits are sweet.
tomatoes are fruit.
therefore, tomatoes are sweet.
Valid Argument
premises are true = conclusion must be true
Valid Argument examples
, Ralph is a dog. Dogs are not allowed on rollercoasters.
Therefore, Ralph is not allowed on rollercoasters.
Invalid Argument
a deductive argument that does not offer logically
conclusive support for the conclusion
Invalid Arguments Examples
Everything I touch turns to gold.
Your dog is a thing I can touch.
Therefor, if I touch your dog, it will turn to gold.
Sound Argument
valid with true premise
Sound Argument Examples
All people will die. Trump is a person. Trump will die.
Unsound Argument
a deductive argument that is invalid, has one or more false
premises, or both
Unsound Argument Examples
All cats are mammals. All mammals are animals.
Therefore, all cats are dogs.
Inductive Arguments
give probable support to the conclusion
Inductive Arguments examples
it looks like a duck.
it quacks like a duck.
therefore, it probably is a duck.
Strong Arguments
premises are true = conclusion likely to be true
Strong Arguments Example
Most employees of this company are under 30 years old.
Tom is an employee of this company. Therefore, Tom is
probably under 30 years old.
