Exercise

MINimizing and MAXimizing some results

Calculating the minimum, maximum or average value from a data set are common tasks when working with databases. You may need to calculate the maximum or minimum salary within a department or the average weight of some people going to the gym.

In this exercise, you will find out the average cocoa percentage used by each company in their chocolate bars.

You will also calculate the minimum and maximum score received by each company during the voting process.

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Calculate the average percentage of cocoa used by each company.