Module opdracht Data Science en Onderzoek

Module opdracht Data Science en Onderzoek

1). Variable

 Ans: a quality or quantity that has a changeable value among entities


2). Data set =

 Ans: entities + variable


3). What are the two types of data?

 Ans: quantitative data
qualitative data


4). Wht are the steps taken to determine frequency distribution?

 Ans: number of ranges
range width
generating the ranges


5). Range width

 Ans: w = (max-min)/c
c= number of ranges
-it is a good idea to maintain a constant w


6). 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


7). Cumulative frequency

 Ans: -denoted by c f
-the sum of the frequencies in that range and all other ranges preceding it




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