FUNDAMENTALS OF COMPUTER

DATABASE FUNDAMENTALS

TYPES OF DATA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are key differences between a bar chart and a histogram? (choose 2)
A
Histograms are for numerical data and bar charts are for categorical
B
Histograms are for categorical data and bar charts are for numerical
C
A bar chart has gaps between each coloumn, a histogram does not
D
A bar chart and histogram can be both used for categorical and numerical data.
Explanation: 

Detailed explanation-1: -What are the Differences Between Bar Chart and Histogram? The bar graph is the graphical representation of categorical data. A histogram is the graphical representation of quantitative data. There is equal space between each pair of consecutive bars.

Detailed explanation-2: -Histograms visualize quantitative data or numerical data, whereas bar charts display categorical variables. In most instances, the numerical data in a histogram will be continuous (having infinite values).

Detailed explanation-3: -Key Differences Between Histogram and Bar graph A histogram represents the frequency distribution of continuous variables. Conversely, a bar graph is a diagrammatic comparison of discrete variables. Histogram presents numerical data whereas bar graph shows categorical data.

Detailed explanation-4: -A histogram is a representation of continuous data that are grouped into classes. There are no gaps between the bars in a histogram because the classes are continuous.

Detailed explanation-5: -A histogram has an appearance similar to a vertical bar chart, but there are no gaps between the bars. Generally, a histogram will have bars of equal width. Chart 5.7. 1 is an example of a histogram that shows the distribution of salary, a continuous variable, of the employees of a corporation.

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