The required percentage of leagues that have fewer than 7 teams is 25%
Box plots and Quartiles
A boxplot is a standardized way of displaying the distribution of data based on a five number summary. It consists of the minimum point, maximum point, quartiles and medians
From the given boxplot, you can see that football league that have fewer than 7 teams occupies 1/4th of the total team. Hence the required peprcentage will be;
Percentage of those that have fewer than 7 teams = 1/4 * 100
Percentage of those that have fewer than 7 teams = 25%
Hence the required of leagues that have fewer than 7 teams is 25%
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