Ecn 221 asu exam - Study guides, Class notes & Summaries

5 number summary and box plots - maximum Q3 median Q1 minimum outliers not based on zscore but IQR range (more than 1.5 IQR below Q1)*** A data set consists of all businesses in Tempe that accept Discover Card branded credit cards. The variables in the data set are the total amount of purchases using Discover Card credit cards and how many purchases were made using the card and all the data are for the year 2008. T/F: The data in this data set constitute a cross section, i.e., they are ...

nominal data - CORRECT ANSWER names indicating characteristic ex: NYSE, NASDAQ ordinal data - CORRECT ANSWER can be ordered/ranked ex: gold, silver, bronze interval data - CORRECT ANSWER quantitative AND can be ranked BUT is a fixed unit of measurement ex: SAT scores, credit score ratio data - CORRECT ANSWER quantitative AND can be ranked BUT is a fixed unit of measurement AND the ratio is meaningful categorical data (qualitative) - CORRECT A...

ECN 221 ASU EXAM -1 QUESTIONS WITH COMPLETE SOLUTION GRADED A+

which of the following is a measure of dispersion? - CORRECT ANSWER interquartile range the sum of deviations of the individual data elements from their mean is_____. - CORRECT ANSWER always equal to zero the value of the sum of the squared deviations form the mean, i.e., summation(x-xbar)^2 must always be______. - CORRECT ANSWER at least zero the interquartile range is_________. - CORRECT ANSWER the difference between the third and first quartiles ...