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    Using Frequency Tables to Find Probability

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    DATA:

    - Height of arch, feet, 3-9, 10-29, 30-49, 50-74, 75-higher

    - Number of arches 111 96 30 33 18
    in park

    QUESTION:

    For an arch chosen at random in Ahches National Park, use the preceding information to estimate the probability that the height of the arch opening is:

    a) 3 to 9 ft
    b) 30 ft or taller
    c) 3 to 49 feet
    d) 10 to 74 feet
    e) 75 feet or taller.

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    https://brainmass.com/statistics/frequency-distribution/frequency-tables-probability-201637

    Solution Preview

    There are 288 total bridges.

    111 + 96 + 30 + 33 + 18 = 288.

    a) 3 to 9 ft

    There are 111 bridges between 3 and 9 feet. The probability of the height of a randomly chosen arch opening is 3-9 feet is 111/288 = 0.38541 = 38.541%.

    b) 30 ft ...

    Solution Summary

    This problem solution shows you step-by-step how to use a frequency table to find probabilities.

    $2.19

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