Range

The range is the difference between the highest and lowest value of a set of data. In a certain way, we may consider as the same concept as the domain of a continuous function.

The Human Development Index (HDI) measures the developedment ofa country regarding several parameters. The following table shows the ranking of HDI of the countries of the European Union:

Country Ranking HDI
Germany $23$
Austria $15$
Belgium $17$
Bulgaria $53$
Cyprus $28$
Denmark $14$
Slovakia $42$
Slovenia $27$
Spain $13$
Estonia $44$
Finland $11$
France $10$
Greece $24$
Hungary $36$
Ireland $5$
Italy $20$
Latvia $43$
Lithuania $45$
Luxembourg $18$
Malta $34$
Netherlands $9$
Poland $37$
Portugal $29$
The United Kingdom $16$
Czech Republic $32$
Romania $60$
Sweden $6$

The country with the highest position in the ranking is Ireland (the fifth one), while the lowest is Romania in the position $60$.

And so, the range of this scoring is:

$60-5 = 55$ positions.

Practice exercises