Without data you're just another person with an opinion
W. Edwards Deming
I agree with the above quote 100% but even with data it is possible tell different stories especially when the person doing the telling is economic with the details/context. For example.
When looking at casualties in the Vientnam war. We can plot the number of casualties by state:
CA obviously suffered the highest numbers of casualties no one can argue, the visualisation clearly demonstrates this. But CA at the time was one of the most populous states in the USA so we might not be surprised to discover that more casualties came from CA. What happens if we get data on state populations from the 1960s and 70s and normalise the casualty numbers to get casualties per capita:
Now Missouri stands out as the state that suffered the highest casualty rates per capita while CA had one of the lower casualty rates. It is important to include all details - total casualties and total casualties per capita are not the same thing
Another example is the Olympic medal tables. If you assign points to medal type, gold = 3, silver = 2 and bronze = 1 then the top countries in the 2016 Olympic games include:
United States, Great Britain, China, Russia, France, Germany, Japan - this list is not surprising as these countries are amongst the richest and most populous countries on the planet. If we repeat this but this time divide by country population we get: Bahamas, New Zealand, Jamaica, Bahrain, Fiji, Croatia, Armenia, Hungary, Denmark and Georgia, a very different view of the Olympic medal tables. So maybe the success of countries like the USA, the UK and China are due more to their population size and wealth rather than sporting ability.