Average temperatures in Paris since 1900
Proposé par Camille Démo ✓, Collège Jean-Moulin, Paris · publié le 17 septembre 2026
Calculate the mean, median and range of a series of annual temperatures, then interpret the trend.
Énoncé
The table below gives the average annual temperature recorded at the Paris-Montsouris weather station for several years.
| Year | 1900 | 1920 | 1940 | 1960 | 1980 | 2000 | 2020 |
|---|---|---|---|---|---|---|---|
| Temperature (°C) | 11.1 | 11.4 | 11.2 | 11.6 | 11.9 | 12.7 | 13.4 |
Calculate the mean temperature of this series.
Find the median.
Calculate the range.
What can you say about how temperatures have changed? Justify your answer with the values you calculated.
Voir le corrigé
Mean = (11.1 + 11.4 + 11.2 + 11.6 + 11.9 + 12.7 + 13.4) / 7 ≈ 11.9 °C
Ordered series: 11.1; 11.2; 11.4; 11.6; 11.9; 12.7; 13.4 → median = 11.6 °C
Range = 13.4 − 11.1 = 2.3 °C
The recent values are well above the mean: the trend is towards warming.
Afficher les 2 questions de quiz
Questions à choix multiples sur le sujet climatique de cet exercice. Indiquez que l'exercice a été fait avec une classe pour les ajouter au quiz de cette classe.
By how much has the average temperature of the planet risen since the end of the 19th century?
- A. About 0.1 °C
- B. About 1.2 °C ✓
- C. About 5 °C
- D. It has not changed
What is the difference between weather and climate?
- A. There is none
- B. Weather describes conditions over a few days, climate describes averages over at least 30 years ✓
- C. Climate is only about temperature
- D. Weather is only about rain
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