(Basic Statistics for Citizen Data Scientist) Frequency Tables Often data is presented in the form of a frequency table. For example, the data in range A4:A11 of Figure 1 can be expressed by the frequency table in range C4:D7. Figure 1 – Frequency Table The table in Figure 1 shows that the data element 2 occurs …
Day: January 21, 2021
(Basic Statistics for Citizen Data Scientist) Descriptive Statistics Tools Excel provides a data analysis tool called Descriptive Statistics which produces a summary of the key statistics for a data set. Example 1: Provide a table of the most common descriptive statistics for the scores in column A of Figure 1. Figure 1 – Output from Descriptive Statistics data …
(Basic Statistics for Citizen Data Scientist) Ranking Functions in Excel Excel Functions: Figure 1 summarizes the various ranking functions available in all versions of Excel for a data set R1. We describe each of these functions in more detail on the rest of this webpage, plus we describe additional ranking functions that are only available …
(Basic Statistics for Citizen Data Scientist) Symmetry, Skewness and Kurtosis We consider a random variable x and a data set S = {x1, x2, …, xn} of size n which contains possible values of x. The data set can represent either the population being studied or a sample drawn from the population. Looking at S as representing a distribution, the skewness of S is a measure of symmetry while kurtosis is …