Statistics problem

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Hello,
I have an assignment to do tomorrow during the holidays but I don't understand, so could you really help me?
Statement:
Determine the frequencies of the statistical series below, so that the mean is equal to 3, the median is equal to 4, and the range is equal to 5.
Values: 1 2 3 4 5 6
Frequency: 100
Configuration: iPhone / Chrome 39.0.2171.93

1 answer