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AP Stats Chapter 1

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  • What is the range for this distribution?
    49
  • How do you find interquartile range?
    Q3 - Q1
  • 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
  • How do you calculate if there are outliers?
    Q1 - 1.5 IQR, Q3 + 1.5 IQR - any values outside of that range are outliers
  • How is the mean calculated?
    Adding all values and dividing the total by the number of values
  • What percent of SUV owners are male?
    About 13%
  • 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
  • What is the shape?
    Left Skewed
  • In an ordered set of data, where is the median located?
    the middle
  • Excluding the possible outlier, what is the shape of the distribution?
    Approximately symmetric
  • What are two measures of spread (variability)?
    range, interquartile range, standard deviation, variance
  • If I take the number of females that own sports cars and divide it by the total number of females... Is this a part of a marginal of conditional distribution?
    Conditional
  • Which fertilizer has the lowest median height?
    None (no fertilizer)
  • Which fertilizer has the most consistent heights?
    Growfast
  • The ________ 50% of the data in a box plot is between Q1 and Q3.
    middle
  • What is the median time for the 100-meter sprint? (There are 19 values)
    10.4 seconds
  • What is the shape of this distribution?
    left (negatively) skewed
  • 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
  • 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
  • What is the shape?
    Right Skewed
  • 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
  • What percent of females are SUV owners?
    75%
  • When describing center, you should talk about one of two measures. What are they?
    mean, median
  • What percent of survey participants own sports cars?
    35%
  • For data to be presented in a pie graph, the percentages of the data categories must add up to what percentage?
    100