Deaths 2009 A National Vital Statistics Report (www.cdc.gov/nchs/) indicated that nearly 290,000 black Americans died in 2009, compared with just over 2 million white Americans. Below are histograms...

Deaths 2009 A National Vital Statistics Report (www.cdc.gov/nchs/) indicated that nearly 290,000 black Americans died in 2009, compared with just over 2 million white Americans. Below are histograms displaying the distributions of their ages at death.

a) Describe the overall shapes of these distributions.

b) How do the distributions differ?

c) Look carefully at the bar definitions. Where do these plots violate the rules for statistical graphs?