Median age of country populations
Number Sense Social Studies Ratio and Proportion Probability and Statistics Wow factor
Interesting map! Why median? What are the implications?     https://statisticstimes.com/demographics/countries-by-median-age.php Demography is the study of populations. Scientist...
median 6.SP 7.SP MP2 MP3 HSS.IC 6th 7th 8th HS HS.modeling HSS-ID central tendency demographics median ages world population population trends