Sketch A Scatter Plot

Discussion in 'Other Pre-University Math' started by nycmathguy, Jul 7, 2021.

  1. nycmathguy

    nycmathguy

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    Section 1.1
    Question 16

    Sketch a scatter plot of the data
    shown in the table.

    See attachment.

    The idea here is to plot the x and y values on the xy-plane.

    What is the main goal of a scatter plot?
    Is this not a statistics lesson? Why would it be in Section 1.1 in a precalculus book?

    20210706_223323.jpg
     
    nycmathguy, Jul 7, 2021
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  2. nycmathguy

    MathLover1

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    Scatter plots' primary uses are to observe and show relationships between two numeric variables. The dots in a scatter plot not only report the values of individual data points, but also patterns when the data are taken as a whole. Identification of correlational relationships are common with scatter plots.

    this is your scatter plot
     

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    MathLover1, Jul 7, 2021
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  3. nycmathguy

    nycmathguy

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    I am correct in terms of plotting points, right?
    However, points are not connected with a smooth curve or a line. Scatter plots do not form a function, right?
     
    nycmathguy, Jul 7, 2021
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  4. nycmathguy

    MathLover1

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    no, they do not form a function but you can find a function that fit this graph

    A scatter plots can describe relationships between variables in many ways: positive or negative, strong or weak, linear or nonlinear.
    A scatter plot can also be useful for identifying other patterns in data. We can divide data points into groups based on how closely sets of points cluster together. Scatter plots can also show if there are any unexpected gaps in the data and if there are any outlier points. This can be useful if we want to segment the data into different parts, like in the development of user personas.
     
    MathLover1, Jul 7, 2021
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  5. nycmathguy

    nycmathguy

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    I was right. Mathematics is found throughout life, in all fields of study.
     
    nycmathguy, Jul 7, 2021
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