A teacher has asked all the students in the class which days of the week they read after 9 pm. which of the following is the best way to display the percent of number of students for each day of the week?
A.
Histogram
B.
Pie graph
C.
Scatter plot
D.
Bar graph
The correct answer is:
B. Pie graph
Explanation: A pie graph (or pie chart) is ideal for displaying the percentage of students who read after 9 pm for each day of the week. This type of graph effectively shows how each day of the week contributes to the total, allowing for easy comparison of proportions.
Here’s why the other options are less suitable:
- A. Histogram: A histogram is used to display the distribution of numerical data across intervals or bins, not categorical data like days of the week.
- C. Scatter plot: A scatter plot is used to show the relationship between two numerical variables. It is not appropriate for displaying percentages or categorical data.
- D. Bar graph: While a bar graph can display the number of students for each day of the week, it does not inherently show percentages. However, it could be adapted to show percentages if labeled appropriately.
A pie chart is preferred in this case because it visually represents the proportion of students reading on each day relative to the total, making it easier to understand the distribution at a glance.
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