Pie charts were invented by the Scottish engineer William Playfair, but the name for these visual representations of data came later. In other countries, this type of graph goes by names for other round foods. In France, a pie chart is sometimes...
Pie charts were invented by the Scottish engineer William Playfair, but the name for these visual representations of data came later. In other countries, this type of graph goes by names for other round foods. In France, a pie chart is sometimes...
