新版GRE数学复习重要考点：Multiple Times

本文为大家介绍的GRE数学复习考点是“幂”。

新版GRE数学复习重要考点：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.

以上的内容大家一定要好好掌握，在考试的时候发挥出自己应有的水平。