38. Use the information below and complete the table, then answers the following questions (a-h). (**Using D-Method) Thirty automobiles were tested for fuel efficiency, in miles per gallon (MPG). The Following frequency distribution was obtained. Class Limits Frequency 7.5 - 12.5 3 12.5 - 17.5 5 17.5 - 22.5 15 22.5 - 27.5 5 27.5 - 32.5 2 Class Limits Frequency Midpoint Cf d -2 -1 0 1 2 Total a) Mean c) Mode b) Median d) Range df d 2 d 2 f e) Variance f) Standard deviation g) 45th Percentile h) 1st Quartile