Déterminer une MÉDIANE dans une liste de valeurs - Quatrième

Yvan Monka2 minutes read

A median divides an ordered series of values into two equal parts by finding the middle value. The median is calculated differently based on whether the series of values has an odd or even number of values.

Insights

  • The median of a series of values is the point that divides the series into two equal parts, with an equal number of values on each side.
  • When calculating the median for a series with an even number of values, the average of the two middle values is used to determine the median position accurately.

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Recent questions

  • How is a median calculated?

    The median is calculated by arranging values in ascending order and finding the middle value.

  • What does a median represent?

    A median represents the middle value in a series of ordered values.

  • When is the median used?

    The median is used to find the central tendency in a dataset.

  • How does the median differ from the mean?

    The median is the middle value, while the mean is the average of all values.

  • Why is the median important in statistics?

    The median is important in statistics as it provides a measure of central tendency that is not influenced by extreme values.

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Summary

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Finding the Median in Ordered Data

  • A median divides an ordered series of values into two equal parts, with as many values before and after it.
  • To determine the median, first arrange the values in ascending order.
  • If the series has an odd number of values, the median is one of the values in the series.
  • If the series has an even number of values, calculate the average of the two values around the theoretical median position to find the median.
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