A teacher has asked all the students in the class which days of the week they get up after 8 a.m. Which of the following is the best way to display the frequency of each day of the week?
A.
Histogram
B.
Scatterplot
C.
Pie graph
D.
Bar graph
The correct answer is:
D. Bar graph
Explanation:
Bar graph: A bar graph is ideal for displaying the frequency of categorical data, such as the days of the week. It allows for a clear comparison of how often each day is reported for getting up after 8 a.m.
Histogram: A histogram is used for displaying the distribution of numerical data over intervals or bins, not for categorical data like days of the week.
Scatterplot: A scatterplot is used to show the relationship between two numerical variables, which isn’t applicable for this categorical data.
Pie graph: A pie graph shows proportions or percentages of a whole, which can be less effective than a bar graph for comparing frequencies of individual categories.
Therefore, a bar graph is the most suitable option for displaying the frequency of each day of the week.