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10 October, 02:39

3. A Gallup poll reported that 28% of adults (age 18 and older) eat at a fast food restaurant about once a week. Find the probability that two randomly selected adults would both say they

eat at a fast food restaurant about once a week.

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  1. 10 October, 06:14
    0
    0.0784 or 7.84%

    Step-by-step explanation:

    Data provided in the question:

    Probability that adults (age 18 and older) eat at a fast food restaurant about once a week, P (F) = 28% = 0.28

    Now,

    Probability that two randomly selected adults would both say they eat at a fast food restaurant about once a week

    = First adult selected eats fast food * Second adult selected eats fast food

    = 0.28 * 0.28

    = 0.0784

    or

    = 0.0784 * 100%

    = 7.84%
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