Sample True/False Questions

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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


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