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GRE數(shù)學重要知識點:Multiple Times

時間:2019-12-02 09:46:00   來源:新東方在線     [字體: ]

【#GRE留學外語考試# #GRE數(shù)學重要知識點:Multiple Times#】我們都是有夢想?yún)s不知道怎么努力付出的糾結(jié)體,是一個需要別人幫忙規(guī)劃人生的幼稚派。®憂考網(wǎng)為您提供了“GRE數(shù)學重要知識點:Multiple Times”,歡迎閱讀參考!更多相關訊息請關注®憂考網(wǎng)!





  Multiple Times


  If probability of an event happening is p, then the probability that the event happens n times in a row is p∧n.


  Example:


  The probability that a coin toss results in head is 0.5. Then the probability that when the coin is tossed twice, both of them are head is 0.5∧2=0.25.


  Probability that a roll of a six-sided die land with face 1 is 1/6. Then the probability that 1 will turn up three times in a row is (1/6)∧3.


  Remember:


  Note that probability of the event happening does not change from trial to trial.