6. Four histograms are displayed below. These histograms are labelled [on the right-hand side), in order from top to bottom, Histogram A, Histogram B, Histogram C and Histogram D respectively. When answering this question, you should refer to these histograms. Note that all four histograms share the some I-orts, shown at the bottom of the graph. 30- z 20- g a a 10- \" D 100- T5- ; _ E 50 a a m 25- 8' E o- 3 BO- 9 U. 50- s t} 40- g a O 20- 0- 40 E 3' n S 20- U 0_ - so so 40 2o 0 20 40 so so 100 12:: Values 0 In random order, the averages of the four sets of data displayed in histograms A B C and D are: 10, 0, 25, 40. 0 Similarly and again in a random order, the standard deviations of the four sets of data displayed in histograms A B C and D are: 15, 35, 2E! and 10. Your task is to study the histograms shown above, and then to match the correct average value and stande deviation value to each histogram. Each average and standard deviation belongs to just one histogram. When you are condent with your answers, complete the section below. Histogram A: average = ......... , standard deviation = ......... Histogram B: average = ......... , standard deviation = ......... Histogram C: average = ......... , standard deviation = ......... Histogram D: average = ......... , standard deviation =