If p is the probability that an event will happen once, then the probability that it will happen just twice is p2. The probability it will happen 3 times is p3. The probability it will happen at least once ( ie once or twice or three times ore more times is p + p2 + p3 + ... = p(1-p). For "or" you add probabilities, for "and" you multiply probabilities.
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explain why a square i always symetric
21.5%
A square prism is shaped like a cubid. A square pyramid is a pyramid with a square base.
To square a number you multiply it by itself. 7 x 7 = 49. or, 72 = 49.
The probability increases.The probability increases.The probability increases.The probability increases.