"In the table, there are given amounts of chocolate bars baught in particular shops in 2 weeks." "Task: Find number of observations, minimum, maximum, range, sum, average value, mode, median, variance, standard deviation and variance coefficient, skewness, kurtoses." 14 12 28 18 20 Number of cases 18 15 20 14 16 Minimum 25 27 22 17 15 Maximum 21 10 25 25 24 Range 20 11 16 25 20 Sum 13 20 18 29 30 Average value 18 17 19 11 14 Mode 27 19 26 27 19 Median 15 17 24 26 26 Variance 19 22 16 22 27 Standard deviation 20 25 19 25 13 Variance coefficient 24 18 26 14 17 Skewness Kurtoses ##### Sheet/List 2 ##### Results are in table. Calculate weighted average of grades. Grade Credits 2 6 1 6 1 6 2 3 3 5 1 6 1 5 1 3 2 6 3 2 1 6 2 3 1 6 3 6 2 5 2 3 1 6 3 6 3 3 3 6 1 5 2 6 ##### Sheet/List 3 ##### EXCEL (CZE) EXCEL (ENG) Measures of central tendency: Excel 2013 Mode: most frequent value =MODE =MODE.SNGL Median: middle value =MEDIAN =MEDIAN p-% quantil =PERCENTIL Mean: Sample average value: =PRŮMĚR =AVERAGEA Geometric mean: =GEOMEAN =GEOMEAN Measures of variability: Range: R=max xi - min xi Population variance: =VAR =VAR.P Sample variance: =VAR.VÝBĚR =VAR.S Population standard deviation: =SMODCH =STDEVA Sample standard deviation: =SMODCH.VÝBĚR =STDEVA Coefficient of skewness: =SKEW =SKEW Coefficient of kurtoses =KURT =KURT Varianceí coefficient: Nástroje → Analýza dat → Popisná statistika Histogram Sturgers rule: Nástroje → Analýza dat → Histogram Weighted characteristics Weighted average value: Weighted variance: Weighted standard deviation: