SOC 325 Lecture Notes - Standard Deviation, Central Tendency
29 Apr 2014
School
Department
Course
Professor
Document Summary
Chapter three: two main themes, measures of central tendency. How many people have facebook pages -- from last week. 2. in an order -- lowest to highest. Ordinal: median -- the middle value once the values are strung out. 3, 1 has 4, 2 have 5, one has 7. 13 people responded, 4 have 0, 2 have 1, 1 has 2, 2 have. Median 2 -- having two kids is the typical value. Interval-ratio: mean -- the average x-bar = x/n. If we only use the mean we would think there was more: measures of dispersion. That report the degree of dispersion or variability or heterogeneity. There are three of them: nominal: don"t report, ordinal: range -- differences between largest and smallest value, 1 = elementary, 2 = secondary, 3 = collage, 4 = undergraduate, 5. = grad: so, it ranges from secondary to undergraduate, numerical value might need to be interrupted based on categories.
