Understanding Graphs and Data Analysis

Which type of graph is best for showing proportions and percentages of categories?

• Histogram

• Pie Chart

• Line Graph

• Scatterplot

What is the most appropriate graph to use for showing frequency distributions of continuous data?

• Column Graph

• Box and Whisker Plot

• Histogram

• Line Graph

Which graph is ideal for showing trends over time?

• Scatterplot

• Pie Chart

• Line Graph

• Histogram

When is a scatterplot most appropriately used?

• To show relationships between two numerical variables

• To compare categories

• To show distributions, medians, and outliers

• To show proportions and percentages

Which measure of central tendency is most appropriate when the distribution is skewed?

• Mean

• Median

• Mode

• Range

In a normal distribution, what percentage of scores lie within one standard deviation from the mean?

• 50%

• 68%

• 95%

• 99.7%

What is the shape of a distribution called when it has more than one peak?

• Unimodal

• Bimodal

• Symmetrical

• Skewed

Which measure of central tendency is most appropriate for nominal data?

• Mean

• Median

• Mode

• Standard Deviation

What is the term for a distribution where the tail heads towards zero?

• Negatively skewed

• Positively skewed

• Symmetrical

• Bimodal

Which graph is best for comparing categories or for experimental research designs where the independent variable is categorical?

• Line Graph

• Column Graph

• Pie Chart

• Scatterplot