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14 August, 12:57

Use the frequency table. Find the probability that a person goes to the movies at least 8 times a month. Round to the nearest thousandth.

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  1. 14 August, 13:08
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    (90+145+235) / 689

    470/689

    0.682

    You could have found it even easier if you know that P (A) = 1-P (B), then you would calculate the probability of going less than 2 times and subtract that value from 1 ...

    1 - (219/689)

    (689-219) / 689

    470/689

    0.682
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