Sample True/False Questions
In a valid argument, what can NEVER occur?
All the premises are true while the conclusion is false
A deductive argument can be sound, but not valid
False
A population is a group of humans, and not just any sort of objects
False
A representative sample does not need to accurately reflect the characteristics of the population as a whole
False
A sound argument can have false premises
False
A sound argument can have true premises and a false conclusion
False
A valid argument always has a true conclusion
False
A valid argument can have true premises and a false conclusion
False
A valid argument can never have a false conclusion
False
A valid argument is automatically a sound argument
False
An inductive argument always has true premises
False
If a deductive argument has a false conclusion, then it is not valid
False
If a deductive argument has true premises and a true conclusion, then it is sound
False
If a deductive argument has true premises and a true conclusion, then it is valid
False
If a deductive argument is not sound, then it is not valid
False
In a categorical syllogism, the major premise is always true
False
In a valid argument, all premises are true
False
In all strong inductive arguments the conclusion is likely to be true
False
In all weak inductive arguments, the conclusion is certainly false
False
In an invalid argument, at least one of the premises is false
False
The main operator cannot be the negation operator
False
The standard deviation describes the amount of similarity in a set of numerical values: the higher the value of the standard deviation, the more similar the values in the set are to each other and the closer most values are to the mean
False - SD describes diversity the higher the value the more diverse the values are and the farther they are from the mean
A compound statement has at least three simple statements as a component
False - at least 1 simple statement and at least one logical operator as components
The horseshoe symbol is used to translate a conjunction
False - conditional
A categorical syllogism contains four different terms, each of which is used three times
False - contains 3 different terms, each of which is used twice
In ordinary language, the word "if" typically precedes the consequent of a conditional
False - if typically precedes the antecedent
The mean is a statistical average that is determined by multiplying the numerical values in the data concerning the examined objects, then dividing by the number of objects that were measured
False - must add the numbers
In ordinary language the words "only if" typically precedes the antecedent of a conditional
False - only if typically precedes the consequent
The subject of the conclusion of a categorical syllogism is the major term
False - the predicate
A categorical syllogism is a syllogism constructed entirely of categorical propositions
True
A cogent argument always has true premises
True
A disjunction is a compound statement that has two distinct statements (called disjuncts) connected by the wedge symbol
True
A sample is a subset of a population
True
A statement variable can stand for any statement, simple or complex
True
A syllogism is a deductive argument that has exactly two premises and a conclusion
True
A valid argument can have a false conclusion
True
An invalid argument is automatically an unsound argument
True
If a deductive argument has true premises and a false conclusion, then it is not valid
True
If a deductive argument is not valid, then it is not sound
True
If a valid deductive argument has only true premises, then its conclusion is also true
True
In a cogent argument, all premises are true
True
In a valid deductive argument it can never be the case that all premises are true and the conclusion is false
True
No sound argument can have a false conclusion
True
The median is determined by locating the values that separates the entire set of data in half
True
The mode is an average determined by locating the value that occurs the most
True
To get a random sample, every member of the population must have an equal chance of getting into the sample
True
What do we call a deductive argument in which it can never be the case that all of the premises are true and the conclusion is false?
valid