DATABASE FUNDAMENTALS
BASICS OF BIG DATA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Showing the amount of change in data over time
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Showing the relationship of parts to a whole
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When searching the realation between two or more varibles
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Comparing invidual items
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Detailed explanation-1: -Bar charts illustrate comparisons among individual items. In a bar chart, the categories are typically organized along the vertical axis, and the values along the horizontal axis. Consider using a bar chart when: The axis labels are long.
Detailed explanation-2: -Bar charts are one of the many techniques used to present data in a visual form so that the reader may readily recognize patterns or trends. Bar charts usually present categorical variables, discrete variables or continuous variables grouped in class intervals.
Detailed explanation-3: -A bar chart is used when you want to show a distribution of data points or perform a comparison of metric values across different subgroups of your data. From a bar chart, we can see which groups are highest or most common, and how other groups compare against the others.
Detailed explanation-4: -A bar chart illustrates comparisons between individual items. Categories are organized vertically and values horizontally to focus on comparing values and to place less emphasis on time.
Detailed explanation-5: -Column charts are useful for comparing discrete data or showing trends over time. Column charts use vertical data markers to compare individual values.