Examlex
It is believed that phototrophy arose approximately 3.3 billion years ago in
Median
The middle value of a data set, which divides the set into two equal halves when arranged in ascending or descending order.
Pth Percentile
A value on a rank-ordered dataset below which a certain percentage (P) of observations fall.
Observations
Data collected during an experiment or research, representing the values or attributes of variables of interest.
Percent
A way to express a number as a fraction of 100, symbolized by the percent sign (%).
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