math
9th Grade - Statistics

9th Grade lesson

8 - Statistics



Evolution percentage

As its name indicates, an evolution percentage gives the evolution in percents between two values, over time. You calculate it thanks to the formula :

evolution percent


For example, if there were 55 millions of inhabitants in France in 1980 and 60 millions in 1990, then the evolution percentage between 1980 and 1990 is :

evolution percent calculation

The evolution of the number of inhabitants between 1980 and 1990 is 9%.

If additional information on statistics is required, you can read the 7th Grade or 8th Grade statistics chapters.



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Statistics in 9th Grade

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