P50, P75 & P90

P50, P75 & P90 refer to probabilities of exceedance at 50%, 75% and 90% levels respectively. For example, if P50 value of wind speed measured at a site is 5 m/s, then there is a 50% probability that the value will be exceeded in an year. Similarly P75 value implies 75% probability that the specified value will get exceeded.

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