Which of the following data organization schemes is useful in showing changes in

Question

Which of the following data organization schemes is useful in showing changes in data relationships over time? A. bar graph B. pictogram C. line graph D) pie chart E. scatterplot F. none of the above Which of the following is/are necessary for property displaying a statistical plot, picture, or graph? A. a title B. a source C. proper labeling of the axes D. proper labeling/representation of the pie segments, bars, etc. E. All of the above A pie chart would be most appropriate with which of the following statistical tests? A. chi-square goodness-of-fit B. chi-square test for independence C. correlation The following 3 Questions (Q18 to Q20) are either "True" or "False" Bar graphs are useful to represent two or more measurement variables. 'Chart-junk' should he used in all statistical plots, pictures, and graphs. A chi-square test is appropriate with categorical variables.

Explanation / Answer

15) C. Line Graph(Although all the data organisation schemes can show change over the time, but the line graph is the most helpful when when it comes to seeing the change in a period of time)

16) E. All of Above (We need all the mentioned items for getting a proper graph.Title tels us the title of the graph while the source of data is known through the source.Proper labelling of axes, bars etc helps us amking a proper graph and understanding it correctly)

17) A. chi square goodness of fit (because we use the probility or percentage in both the options)

18) False (bar graph can show one variable also)

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