ACCT352 Lecture 1: Lecture 1

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A way of reasoning, along with a collection of tools and methods designed to help us understand the world (pg. 2) Thi(cid:374)gs (cid:448)ar(cid:455) people are differe(cid:374)t (cid:272)a(cid:374)"t see e(cid:448)er(cid:455)thi(cid:374)g or (cid:373)easure it all (cid:449)hat (cid:449)e (cid:272)a(cid:374) measure might be inaccurate. When you plan a statistical study or explore data from someone else"s (cid:449)ork, ask (cid:455)our self wh(cid:455), Who, what and how (and if possible when and where) Individual cases (individuals) are the objects described by a set of data. A variable is any characteristic of an individual case (or an individual. ) A variable can take different values on different cases: e(cid:454)a(cid:373)ple: a (cid:272)ollege"s stude(cid:374)t data (cid:271)ase. Variables: date of birth, gender (female or male), choice of major, gpa etc. Weights for example, might be recorded in pounds, in thousands of pounds or in kg. Some variables like gender, college major simply place individuals into categories. Others like height, gpa take numerical values with which we can do arithmetic.

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