Although Dominick's Psychology Class Is Sometimes Longer or Shorter Than

question 223

Multiple Choice

Although Dominick's psychology class is sometimes longer or shorter than usual,on average each class is 50 minutes.If the lengths of these classes form a normal curve,which statistic would enable Dominick to estimate the probability that any single class will last somewhere between 47 and 53 minutes?

• A) range
• B) median
• C) correlation coefficient
• D) standard deviation

---

Definitions:

Disjunctive Syllogism

A form of reasoning wherein from two statements, one necessarily follows as a conclusion if the other is ruled out.

Unstated Premise

An implicit assumption or premise that is not explicitly mentioned but is required for an argument to hold.

Disjunctive Premise

A type of logical statement that presents two or more options in such a way that if one is true, the others must be false.

Negative Proposition

A statement or assertion that denies something, especially a predicate of a subject.