Understanding Data: Qualitative vs. Quantitative

What is the primary difference between qualitative and quantitative data?

• Qualitative data is numerical, while quantitative data is descriptive.

• Qualitative data is descriptive, while quantitative data is numerical.

• Both are numerical data types.

• Both are descriptive data types.

Which of the following is a method for collecting qualitative data?

• Surveys with numerical scales

• Interviews

• Experiments

• Observational studies with numerical data

Which data analysis technique is commonly used for quantitative data?

• Thematic analysis

• Content analysis

• Statistical analysis

• Narrative analysis

When interpreting a bar chart, what does the height of each bar represent?

• The category name

• The frequency or value of the category

• The total number of categories

• The average of all categories

Which of the following is an example of quantitative data?

• The color of cars in a parking lot

• The number of students in a classroom

• The type of cuisine served in a restaurant

• The brand of a smartphone

What is the median of the following data set: 3, 7, 9, 15, 21?

• 7

• 9

• 15

• 21

Which data collection method would be most appropriate for gathering data on customer satisfaction?

• Conducting a controlled experiment

• Distributing a survey with open-ended questions

• Observing customer behavior in a store

• Analyzing sales data

If a line graph shows a steady upward trend, what can be inferred about the data?

• The data is decreasing over time.

• The data is constant over time.

• The data is increasing over time.

• The data is fluctuating randomly.

Which statistical measure is used to determine the spread of a data set?

• Mean

• Median

• Mode

• Standard deviation

A researcher wants to understand the reasons behind employee turnover in a company. Which data collection method should they use?

• Quantitative surveys

• Qualitative interviews

• Numerical data analysis

• Statistical modeling