Worksheet Questions Extraction

What is the first step in the 6-step framework for data analysis decision-making?

• Generate Hypothesis

• Test Hypothesis

• Gather, Clean, and Prepare Data

• Frame the Problem Statement

Which of the following is NOT a primary data source?

• Surveys

• Observations

• Government reports

• Experiments

Which stage of the data analysis process involves applying statistical methods to determine if hypotheses are supported?

• Frame the Problem Statement

• Generate Hypothesis

• Test Hypothesis

• Interpret Results

Which data collection method is characterized by random assignment of participants to experimental and control groups?

• Surveys

• Observations

• Interviews

• Experiments

What is the main challenge associated with non-response bias in data collection?

• Data storage limitations

• Potential biases due to participants not responding

• High data collection costs

• Technical equipment failures

Which type of chart is most effective for displaying proportions and parts of a whole?

• Bar Chart

• Line Chart

• Pie Chart

• Scatter Plot

What are the two main types of data validation?

• Manual and Automated

• Syntactic and Semantic

• Primary and Secondary

• Quantitative and Qualitative

Which type of chart is best for showing trends and changes over time?

• Bar Chart

• Line Chart

• Pie Chart

• Scatter Plot

Which type of visualization is excellent for showing relationships between two variables and identifying correlations?

• Bar Charts

• Pie Charts

• Scatter Plots

• Line Charts

From the series {1,1,2,2,3,4,5,5,5}, what is the mode?

• 3

• 3.11

• 5

• 2