STA220H1- Final Exam Guide - Comprehensive Notes for the exam ( 52 pages long!)
29 Mar 2018
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STA220H1 Full Course Notes
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Continuous: can be part of the whole or whole e. g. height, weight. Discrete: must be integers e. g. population size, number of countries. Note: age can be either continuous or discrete, depending on usage. For example, number of years old is discrete whereas the exact age of a person in years, months, weeks, days etc. is continuous. No(cid:373)i(cid:374)al: (cid:858)u(cid:374)o(cid:396)de(cid:396)ed (cid:272)atego(cid:396)ies(cid:859) e. g. race, income level. O(cid:396)di(cid:374)al: (cid:858)o(cid:396)de(cid:396)ed (cid:272)atego(cid:396)ies(cid:859) e. g. age g(cid:396)oup (cid:894)i(cid:374)fa(cid:374)t, s(cid:272)hool aged (cid:272)hild(cid:396)e(cid:374), tee(cid:374)age(cid:396)s (cid:895) Divides to 50% above point & 50% below point. Note: the key is on interpreting the quantities, not computing them. Data: 78, 93, 68, 84, 90, 74 (n=6) Place in order: 68, 74, 78, 84, 90, 93. Formula for determining quartiles and percentiles: 1 + p(n-1) *p50 = 50th percentile = median = 50% trimmed mean (remove 50% above & 50% below) The maximum point of a data set = q3 + 1. 5iqr. The minimum point of a data set = q1 - 1. 5iqr.
