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29 January, 15:05

An experiment consist of drawing 1 card from a standard 52 - card deck. Let E be the event that card drawn is a 2. Find P (E').

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  1. 29 January, 17:18
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    The sum of the probabilities of an event E and its complement E' is 1,

    that is P (E) + P (E') = 1, where E' is "not E".

    The event E can happen in 4 ways, because there are four 2's that can be drawn.

    P (E) = n (E) / 52=4/52=0.08

    P (E') = 1-P (E) = 1-0.08=0.92

    Answer: 0.92
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