Statistics Test

What is the first step in the process of data collection?

• Data analysis

• Identifying the objective of the study

• Creating a graph

Which of the following is an example of primary data?

• Data taken from a research journal

• Data obtained through surveys conducted by the researcher

• Data collected from books

• Data downloaded from a government website

What type of data is represented by eye color (e.g., brown, blue, green)?

• Nominal

• Ordinal

• Interval

• Ratio

What is the most appropriate graph to display the frequency of categories in qualitative data?

• Histogram

• Pie chart

• Scatterplot

• Stem-and-leaf plot

When arranging numerical data from smallest to largest, what is the process called?

• Grouping

• Data analysis

• Data organization

• Classification

Which statistical table displays the frequency of observations within specific intervals?

• Contingency table

• Correlation matrix

• Frequency distribution table

• Scatter plot

What is the purpose of a stem-and-leaf plot?

• To show how two variables are related

• To display the shape of a data set while keeping original values

• To compare parts of a whole

• To summarize data using averages

Which of the following best describes a bar graph?

• It is used to show the relationship between two numerical variables

• It is used to compare different categories using rectangular bars

• It represents data in a circular format

• It is only used for continuous data

What type of scale is used for temperature measured in degrees Celsius?

• Nominal

• Ordinal

• Interval

• Ratio

A pie chart is most useful when displaying:

• The trends in data over time

• The proportion of categories in a whole

• The relationship between two quantitative variables

• The frequency of individual numerical values