Median

{
  "id": "MLC-T-ENV-016872",
  "term": "Median",
  "field": "Environment",
  "definitions": [
    "1. A measure of central tendency, the value of the case marking the midpoint of an ordered list of values of all cases; a statistic used primarily with ordinal variables and asymmetrically distributed interval-ratio variables.\n\n2. The middle value in a population distribution, above and below which lie an equal number of individual values; midpoint.\n\n3. A measure of central tendency. The simplest division of a set of measurements is into two parts - the lower and the upper half. The point on the scale that divides the group in this way is called the \"median.\"\n\n4. The midpoint value obtained by ranking all values from highest to lowest and choosing the value in the middle. The median divides a population into two equal halves.\n\n5. The middle value of n numbers (if n is even it is the arithmetic mean of the middle two numbers).\n\n6. The middle number or center value of a set of data in which all the data are arranged in sequence. {ORD} {OW/EAD} {OPP} {OW/TSC} {OAR/OAQPS} {OECA} {ORCR}\n\n7. Middle value of a set of ordered values (i.e., half the numbers are less than or equal to the median value). A median is the 50th percentile of the data.\n\n8. The middle number or center value of a set of data in which all the data are arranged in sequence.\n\n9. The middle value of a set of ordered values (i.e., half the numbers are less than or equal to the median value). A median is the 50th percentile of the data.",
    "(P0.50) The 50th percentile data point; the central value of the dataset when ranked in order of magnitude. The median is more resistant to outliers than the mean and is only minimally affected by single observations."
  ],
  "subject": [
    "Measurements",
    "Water"
  ],
  "references": [
    "Program Evaluation Glossary",
    "CARBB 2000; CARB 2000; Thesaurus of Terms Used in Microbial Risk Assessment",
    "Last 1983; Thesaurus of Terms Used in Microbial Risk Assessment",
    "NIAID 2000; Thesaurus of Terms Used in Microbial Risk Assessment",
    "NZ 2002; Thesaurus of Terms Used in Microbial Risk Assessment",
    "Forum on Environmental Measurements (FEM) Glossary",
    "National Air Toxics Assessment (NATA) Glossary",
    "AirToxScreen Glossary of Terms",
    "Watershed Planning Glossary of Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/median/"
}