A All students inform policy
B Some students may inform policy
C No students inform policy
D All policy comes from students
Explanation: We can only conclude that some students may inform policy.
A Slippery slope
B Ad hominem
C Straw man
D Circular reasoning
Explanation: Assuming immigrants will destroy culture is a slippery slope argument.
A A is true
B C is true
C C is false
D B is false
Explanation: B∧C→D and D is false means B∧C is false. Since B is true, C must be false.
A All biographies aid understanding
B Some biographies may aid understanding
C No biographies aid understanding
D All understanding comes from biographies
Explanation: All biographies tell true stories, which provide insights, which aid understanding.
A Businesses raise prices
B Other factors cause inflation
C Inflation is bad
D Workers need fair pay
Explanation: If other factors cause inflation, minimum wage increases may not be the primary cause.
A Q is true
B R is true
C Q and R can\'t both be true
D P is false
Explanation: P→Q and P true means Q true. P→R and P true means R true. Q∧R→S means S should be true, but it\'s false. Contradiction.
A All high tariff countries are uncompetitive
B Some high tariff countries may be less competitive
C No high tariff countries are competitive
D All competitive countries have high tariffs
Explanation: We can only conclude that some high tariff countries may be less competitive.
A Public transport provides alternatives
B Alternatives reduce car use
C Reduced car use reduces traffic
D All of the above
Explanation: For the argument to hold, all these assumptions must be true.
A C is true
B C is false
C A is false
D Both B and C are true
Explanation: A∧C→B and B is false means A∧C is false. Since A is true, C must be false.
A All interns get employed
B Some interns may get employed
C No interns get employed
D All employed people were interns
Explanation: We can only conclude that some interns may get employed.
A Scores indicate quality
B Wealthier families provide extra tutoring
C Education is important
D Scores matter
Explanation: If wealthier families provide extra tutoring, higher scores may not be due to school quality.
A A is true
B B is true
C Both A and B are true
D A and B are unknown
Explanation: C being true doesn\'t determine A or B. They could be true or false independently.
A All organic fruits protect the environment
B Some organic fruits may protect the environment
C No organic fruits protect the environment
D All environmental protection comes from organic fruits
Explanation: All organic fruits are pesticide-free, which is sustainable, which protects the environment.
A Team building is fun
B Working better together indicates improved collaboration
C Collaboration is important
D Activities are engaging
Explanation: If working better together indicates improved collaboration, this strengthens the claim.
A P is true
B Q is true
C R is true
D All of P-U are false
Explanation: By modus tollens backwards, if V is false, then U, T, S, R, Q, and P must all be false.
A All developing countries build relationships
B Some developing countries may build relationships
C No developing countries build relationships
D All relationships come from developing countries
Explanation: We can only conclude that some developing countries may build relationships.
A Costs are dropping
B Technology is improving
C The future matters
D All of the above
Explanation: For the argument to hold, all these assumptions must be true.
A A is true
B A is false
C B is false
D C is false
Explanation: A→D and D is false means A must be false.
A All debaters are good decision-makers
B Some debaters may be good decision-makers
C No debaters are good decision-makers
D All good decision-makers are debaters
Explanation: We can only conclude that some debaters may be good decision-makers.
A Investment creates jobs
B Jobs may be low-paying
C Technology transfer benefits the economy
D Economies need growth
Explanation: If the jobs created are low-paying, the economic benefit may be limited.