Chapter 14 - Big Data Analysis Questions and Answers Grade A+ 2023

Coding - -the process of assigning a numerical score or other character symbol to previously edited data. -Codes - -rules for interpreting, classifying, and recording data in the coding process; also, the actual numerical or other character symbols assigned to raw data. -Dummy coding - -Numeric "1" or "0" coding where each number represents an alternate response such as "female" or "male." -Effects coding - -An alternative to dummy cod- ing using the values of -1 and +1 to represent two categories of responses. -Class coding - -Coding that assigns numbers to categories in an arbitrary way merely as a means of identifying some characteristic. -Descriptive analysis - -the elementary transformation of raw data in a way that describes the basic characteristics such as central tendency, distribution, and variability -Histogram - -A graphical way of showing a frequency distribution in which the height of a bar corresponds to the observed frequency of the category