A. Calculate the median percentage increase in sales in dollars, find the mean, median, variance, and typical deviation. Comment on the symmetry. B. Determine which of the percentage increases will be are more than one deviation from the mean. C. Do any percentage increases differ greatly from the the rest? How is this fact evidenced in each one of the measures of centralization and dispersion found? D. Calculate the coefficient of variation. What can say about the relationship between the mean and the deviation?
Theme: CENTRALIZATION AND DISPERSION MEASURES NON-GROUPED DATA
A department store chain chose randomly 10 establishments located in a region. After examining the sales data, he observed that that year had been achieved in the Christmas the following percentage increases of sales in dollars with respect to the previous year:
10.2 3.1 5.9 7.0 3.7
2.9 6.8 7,3 8,2 4,3
A. Calculate the median percentage increase in sales in dollars, find the
B. Determine which of the percentage increases will be are more than one deviation from the mean.
C. Do any percentage increases differ greatly from the the rest? How is this fact evidenced in each one of the measures of centralization and dispersion found?
D. Calculate the coefficient of variation. What can say about the relationship between the mean and the deviation?
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