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    Descriptive Statistics+probability

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    rahulsukhija
    The document discusses descriptive statistics and probability concepts. It includes a dataset on company performance measures and asks questions about plotting the data, finding outliers and measures of central tendency and variation. It also includes a box plot and histogram and asks questions about interpreting these graphs, including the interquartile range, skewness, mode, and how the graphs complement each other.

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    Descriptive Statistics+probability

    Uploaded by

    rahulsukhija
    169 views3 pages
    The document discusses descriptive statistics and probability concepts. It includes a dataset on company performance measures and asks questions about plotting the data, finding outliers and measures of central tendency and variation. It also includes a box plot and histogram and asks questions about interpreting these graphs, including the interquartile range, skewness, mode, and how the graphs complement each other.

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    stats

    Original Title

    Descriptive statistics+Probability

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    The document discusses descriptive statistics and probability concepts. It includes a dataset on company performance measures and asks questions about plotting the data, finding outliers and measures of central tendency and variation. It also includes a box plot and histogram and asks questions about interpreting these graphs, including the interquartile range, skewness, mode, and how the graphs complement each other.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    169 views3 pages

    Descriptive Statistics+probability

    Uploaded by

    rahulsukhija
    The document discusses descriptive statistics and probability concepts. It includes a dataset on company performance measures and asks questions about plotting the data, finding outliers and measures of central tendency and variation. It also includes a box plot and histogram and asks questions about interpreting these graphs, including the interquartile range, skewness, mode, and how the graphs complement each other.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 3

    Topics: Descriptive Statistics and Probability

    1. Look at the data given below. Plot the data, find the outliers and find out
    2
    , ,

    Measure
    Name of company X
    Allied Signal 24.23%
    Bankers Trust 25.53%
    General Mills 25.41%
    ITT Industries 24.14%
    J.P.Morgan & Co. 29.62%
    Lehman Brothers 28.25%
    Marriott 25.81%
    MCI 24.39%
    Merrill Lynch 40.26%
    Microsoft 32.95%
    Morgan Stanley 91.36%
    Sun Microsystems 25.99%
    Travelers 39.42%
    US Airways 26.71%
    Warner-Lambert 35.00%

    2.

    Questions referred to from Aczel A., Sounderpandian J., Complete Business Statistics (7ed.)
    Answer the following three questions based on the box-plot above.
    (i) What is inter-quartile range of this dataset? (please approximate the
    numbers) In one line, explain what this value implies.
    (ii) What can we say about the skewness of this dataset?
    (iii) If it was found that the data point with the value 25 is actually 2.5, how
    would the new box-plot be affected?

    3.

    Answer the following three questions based on the histogram above.


    (i) Where would the mode of this dataset lie?
    (ii) Comment on the skewness of the dataset.

    Questions referred to from Aczel A., Sounderpandian J., Complete Business Statistics (7ed.)
    (iii) Suppose that the above histogram and the box-plot in question 2 are
    plotted for the same dataset. Explain how these graphs complement
    each other in providing information about any dataset.

    Questions referred to from Aczel A., Sounderpandian J., Complete Business Statistics (7ed.)

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