4. Now you will compare the distributions of life expectancy among the 6 continents. Obtain side-by-side boxplot of life expectancy for the six continents. Check the \"Use fences to identify outliers\" option. Paste the boxplot into your report. Use the boxplots to compare the centers and the spreads of the six distributions. Which continent has the shortest life expectancy and which continent has the longest one (as measured by the median)? Do any outliers appear? If so, identify the countries (repeated values may occur). Rank the continents based on their median life expectancy. Compare the ranking with Question 3, part (b)