Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-summary-statistics-1184-en_uva-summary-statistics-1184-en
    nameuva-summary-statistics-1184-en
    sectionDescriptive statistics/Summary Statistics
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Otto runs 10 miles at 1 p.m. every day. On average, he finishes at 3:50 p.m. with a standard deviation of 10 minutes. His girlfriend Sien starts 30 minutes later and she runs the 10 miles every day exactly twice twice as fast as Otto. What is the average time that Sien finishes, and what is the standard deviation in minutes when she crosses the finish line?


    1. FALSE: Average at 2:25 p.m., standard deviation 5 minutes
    2. FALSE: Average at 2:25 p.m., standard deviation 20 minutes
    3. FALSE: Average at 2:25 p.m., standard deviation 35 minutes
    4. TRUE: Average at 2:55 p.m., standard deviation 5 minutes
    5. FALSE: Average at 2:55 p.m., standard deviation 35 minutes

    1. Average at 2:25 p.m., standard deviation 5 minutes: Incorrect
    2. Average at 2:25 p.m., standard deviation 20 minutes: Incorrect
    3. Average at 2:25 p.m., standard deviation 35 minutes: Incorrect
    4. Average at 2:55 p.m., standard deviation 5 minutes: Correct
    5. Average at 2:55 p.m., standard deviation 35 minutes: Incorrect