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The median of a finite list of numbers is the "middle" number, when those numbers are listed in order from smallest to greatest. If the data set has an odd number of observations, the middle one is selected (after arranging in ascending order).
A median strip, central reservation, roadway median, or traffic median is the reserved area that separates opposing lanes of traffic on divided roadways such as divided highways, dual carriageways, freeways, and motorways. The term also applies to divided roadways other than highways, including some major streets in urban or suburban areas.
Average summer daily traffic (abbreviated to ASDT) is a similar measure to the annual average daily traffic. Data collecting methods of the two are exactly the same, however the ASDT data is collected during summer only. The measure is useful in areas where there are significant seasonal traffic volumes carried by a given road. [8
Median: the value such that the set of values less than the median, and the set greater than the median, each have probabilities no greater than one-half. Mode : for a discrete random variable, the value with highest probability; for an absolutely continuous random variable, a location at which the probability density function has a local peak.
For instance, data show that workers who took the bus to work had an average commute of 46.3 minutes, significantly longer than the national average of 26.7 minutes. (U.S. Census)
the arithmetic mean of the maximum and minimum values of a data set. Midhinge the arithmetic mean of the first and third quartiles. Quasi-arithmetic mean A generalization of the generalized mean, specified by a continuous injective function. Trimean the weighted arithmetic mean of the median and two quartiles. Winsorized mean
Median Empire or Median Kingdom, an ancient Iranian empire predating the First Persian Empire; Median consonant, a consonant sound that is produced when air flows across the center of the mouth over the tongue; Median strip, the portion of a divided roadway used to separate opposing traffic; the British equivalent is central reservation
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