ADMS 3660 Midterm: Cheat Sheet for 2320 Term Test 1 - S15

• School: York University
• Department: Administrative Studies
• Course: ADMS 3660
• Professor: Allan Greenbaum

Document Summary

Categorical no order nominal (arbitrary numbers represent categories, {pass | fail} only based on frequency: ch. 1 descriptive statistics are methods of organizing, summarizing, and presenting data in a convenient and informative way. Modality: a unimodal histogram is one with a single peak, while a bimodal histogram has two peaks: bell shape: a special property of symmetric unimodal histogram, ogive is a graph of a cumulative relative frequency distribution. # of observation at or below a specific value eg. we use ogive to answer: about 48% of the students have first income lower than . Ch. 6-there are three ways to assign a probability to an outcome: classical approach (fair chance), Relative frequency (experimentation or historical), and subjective approach (the assignor"s judgment): an event is a collection or set of one or more simple events in a sample space.