WorksheetsIntro to Data Science
Total questions: 10
Worksheet time: 4mins
What is not part of the data flow in supporting decision making?
Data Question
Data Preparation
Data Decision
Business Analysis
What is the most basic need of data science?
Move/Store
Explore/ Transform
Collect
Learn/Optimise
Which of the following are Continuous Quantitative Data?
Observations & Errors
Observations & Time
Time & Height
Time & Errors
What is the main rule for data analysis?
Collect data
Present the graph
Plot the data
Choose the right chart
Which of the following is true?
Means are correct!
Means are lies!
Means with confidence intervals are lies!
Means with confidence intervals are incorrect!
Which of the following is false?
Surveys and Focus groups are primary data collection methods.
Financial Reports and Internets are secondary data collection methods.
Always stick to 1 collection method.
Combination of tools is the best way for getting valid and confirmed data.
Why do we need to prepare data?
Data might be invalid.
Data might need to be transformed.
Data might have outliers.
All of the above.
Which are the 2 approaches of Data Analysis?
Historical Data & Experimentation
Historical Data & Graphical Data Analysis
Experimentation & Regression Analysis
Experimentation & Hypothesis Testing
Which is not a tool for Graphical Data Analysis?
Bar Chart
Box Plot
Linear Regression
Scatter Plot
Which is not a tool for Statistical Data Analysis?
ANOVA
Logistic Regression
Linear & Non-linear Regression
Histogram
