The infant mortality rate is defined as the number of infant deaths per 1,000 live births. This rate is often used as an indicator of the level of health in a country. The relative frequency histogram below shows the distribution of estimated infant death rates in 2012 for 222 countries.63 (a) Estimate Q1, the median, and Q3 from the histogram. (b) Would you expect the mean of this data set to be smaller or larger than the median? Explain your reasoning.