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AP Stats Chapter 1

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    Describing Distributions
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  • What is the shape?
    Left Skewed
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  • What is the shape?
    Right Skewed
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  • How do you find interquartile range?
    Q3 - Q1
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  • Which fertilizer has the lowest median height?
    None (no fertilizer)
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  • Which fertilizer has the most consistent heights?
    Growfast
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  • On the AP exam, if you were asked to choose the best fertilizer, which would you choose and why?
    Growfast, because it more consistently produces taller plants
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  • What is the median time for the 100-meter sprint? (There are 19 values)
    10.4 seconds
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  • Excluding the possible outlier, what is the shape of the distribution?
    Approximately symmetric
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  • How do you calculate if there are outliers?
    Q1 - 1.5 IQR, Q3 + 1.5 IQR - any values outside of that range are outliers
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  • Sally surveyed her classmates about their diets. She collected their names, ages, the number of sodas drank per day, the number of glasses of water drank per day, and their gender, How many variables did she collect?
    5
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  • Sally surveyed her classmates about their diets. She collected their names, ages, the number of sodas drank per day, the number of glasses of water drank per day, and their gender, How many quantitative variables did she collect?
    3
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  • Sally surveyed her classmates about their diets. She collected their names, ages, the number of sodas drank per day, the number of glasses of water drank per day, and their gender, How many categorical variables did she collect?
    2
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  • What percent of SUV owners are male?
    About 13%
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  • What percent of females are SUV owners?
    75%
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  • What percent of survey participants own sports cars?
    35%
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  • With 2-way tables, If I take the total for a category and divide it by the total of the table... Is this a part of a marginal or conditional distribution?
    Marginal
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