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January 27, 2015

January 27, 2015

Posted by **Ashley** on Monday, April 29, 2013 at 1:09pm.

- Math -
**PsyDAG**, Monday, April 29, 2013 at 2:03pmIf the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

"At least one" = one*or*more.

1/4 * (3/4)^4 = ? (one correct)

(1/4)^2 * (3/4)^3 = ? (2 correct)

(1/4)^3 * (3/4)^2 = ? (3 correct)

(1/4)^4 * 3/4 = ? (4 correct)

(1/4)^5 = ? (5 correct)

Either-or probabilities are found by adding the individual probabilities.

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