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Median definitions

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  • Median
    Middle value in a sorted dataset; for even counts, it's the mean of the two central values, offering resistance to outliers.
  • Mean
    Sum of all values divided by the number of values; sensitive to extreme values and uses every data point.
  • Measure of Center
    A single value summarizing a dataset by indicating its central point, such as mean or median.
  • Outlier
    A value significantly distant from others in a dataset, often distorting measures like the mean.
  • Resistance
    A property describing how unaffected a statistic is by extreme values or outliers in the data.
  • Sorted Data
    A dataset arranged in ascending or descending order, necessary for identifying the median.
  • Symmetric Distribution
    A dataset where values are evenly distributed around the center, making mean and median similar.
  • Skewed Distribution
    A dataset where values are stretched more to one side, often making the median a better center measure.
  • Histogram
    A graphical representation showing the frequency distribution of a dataset, useful for visualizing center and spread.
  • Central Value
    A number representing the middle or typical value in a dataset, often found using mean or median.
  • Data Set
    A collection of values or observations, often analyzed to find measures like mean or median.
  • Sample
    A subset of a population used to estimate characteristics like center or spread.
  • Extreme Value
    A data point much higher or lower than the rest, potentially impacting statistical measures.
  • Mean of Two Middle Numbers
    The average of the two central values in an even-sized sorted dataset, used to determine the median.
  • Median Salary
    A typical income value where half earn more and half earn less, often used to avoid distortion by high earners.