PSYB07H3 Lecture Notes - Lecture 2: Histogram, Frequency Distribution, Bar Chart
Document Summary
Psyb07 lecture 2, tutorial 1 + chapter 2 (pg. Bedmas: brackets, exponents, division & multiplication, addition & subtraction. Population: entire collection of events in which you are interested. Interested in how well psyb07 students performed on the midterm in summer 2016. Example: tutorial students: typically, it is impossible to measure the entire population that we wish to study. E. g. , if (cid:449)e(cid:859)re i(cid:374)terested i(cid:374) the a(cid:448)erage height of (cid:862)(cid:373)e(cid:374)(cid:863), it (cid:449)ould i(cid:374)(cid:272)lude all (cid:373)e(cid:374) i(cid:374) the past, present, a(cid:374)d future. I(cid:374)stead, (cid:449)e (cid:272)ould sele(cid:272)t a (cid:862)sa(cid:373)ple(cid:863) of (cid:373)e(cid:374) to stud(cid:455). Descriptive statistics: describe a data set: can be calculated for a population or a sample, calculating parameters or statistics, sample statistics [ ,, population parameters [,] Inferential statistics: make conclusions about populations from samples: estimating population parameters using sample statistics, sample population, statistics parameters note: to do inferential stats, the sample must be representative of the population.
