Biostatistics Quiz - Charts/Graphs

Kai is analyzing the sales data of his lemonade stand over the summer. What is the primary purpose of a line graph in this context?

• To show frequency distribution of a continuous variable

• To illustrate proportions of a whole

• To display comparative data using bars

• To show trends in numbers or rates over time

Which chart is best used to show the frequency distribution of a continuous variable?

• Bar Chart

• Line Graph

• Histogram

• Pie Chart

What does a box plot primarily display?

• The relationship between two categorical variables

• The relationship between a categorical variable and a continuous variable

• The trends of data over time

• The frequency distribution of a nominal variable

Which measure of central location is NOT commonly used?

• Median

• Mean

• Mode

• Standard Deviation

What type of data is best represented by a pie chart?

• Proportional data

• Time series data

• Comparative data

• Continuous data

What is the purpose of a scatter plot?

• To show the frequency of categories

• To display the relationship between two continuous variables

• To illustrate the distribution of a single variable

• To compare different groups

Which of the following is a characteristic of a histogram?

• Uses slices to show proportions

• Displays data points connected by lines

• Uses adjoining columns to represent frequency

• Shows the relationship between two variables

What does a negatively skewed distribution indicate?

• Tail on the left side

• Tail on the right side

• Symmetrical distribution

• Central location at the peak

Which chart is most effective for comparing subgroups within a group?

• Box Plot

• Line Graph

• Stacked Bar Chart

• Pie Chart

In a recent class project, Scarlett created a bar chart to present the results of a survey on favorite fruits among her classmates. What is the primary use of a bar chart?

• To illustrate relationships between variables

• To show trends over time

• To display frequency distributions

• To compare sizes or frequencies of different categories