Module Opdracht Data Science En Onderzoek

cumulative frequency {Ans: -denoted by c f -the sum of the frequencies in that range and all other ranges preceding it}data set = {Ans: entities + variable}median {Ans: -denoted by Md -number that divides an ordered data set in half}scatter diagram {Ans: a graphical presentation of the relationship between two quantitative variables}Wht are the steps taken to determine frequency distribution? {Ans: number of ranges range width generating the ranges}What are the two main graphical techniques for time-related data? {Ans: line graph a time bar graph}parameter {Ans: a numerical descriptive measure of a population}raw data {Ans: Refers to a bunch of numbers, listed in rows and/or columns, that represent the observed values of a variable}relative frequency {Ans: -denoted by r f -is the frequency of the observations in that range divided by n -determines the proportion of the sample within each range}range width {Ans: w = (max-min)/c c= number of ranges -it is a good idea to maintain a constant w}variable {Ans: a quality or quantity that has a changeable value among entities}organized data {Ans: -refers to a table of numbers, arranged into groups or in a sequence}percent frequency