L’escargot

consomme diverses espèces de plantes comme par exemple l’ortie, le lierre,

les plantains (mais aussi les salades et choux). Les musaraignes, les taupes, les hérissons sont quelques-uns de ses prédateurs dans les jardins.

Dans la chaine

alimentaire qui lie l’escargot, le lierre et le hérisson :      

What is the lowest possible score that a student to for their total Hogwarts score?

What was the lowest score that a male student got for the Average of Hogwarts examinations?

Still using only the male respondents in the sample, what is the mean score for GCSE?

The standard deviation tells us the 'size of the range' around the mean score. In other words it tells us how dispersed the data is in relation to the mean. A low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.

What is the standard deviation for males in their GCSE examinations? (Use 2 decimal places)

What percentage of the sample were males from the EU?

Use the 'select' and select only males in the sample and answer the following questions.

How many males are there in the sample?

Assuming a 'C' is a pass, how many males passed the subject Parseltongue?

How many students from Hufflepuff had scores ranging 61 to 80 for the Potions subject?