Question
In 1784, who discovered the composition of water through
his experiment with hydrogen and oxygen?Solution
The correct answer is A
To ensure data is accurate and complete before beginning analysis, which data validation technique is most commonly used?
A company wants to reduce its high customer churn rate. As a data analyst, which metric is most important to focus on during your initial analysis?
A logistics company wants to reduce delivery delays using predictive analysis. What should they focus on?
What is the primary advantage of using CIDR (Classless Inter-Domain Routing) in IP addressing?
Which visualization library in R is most effective for creating interactive, web-based data visualizations?
Which test is commonly applied in time series analysis to determine whether a series is stationary?
Which of the following best describes the main difference between random and non-random sampling methods?
A dataset contains customer email addresses, and you need to validate the email format. Which of the following methods is most suitable for this task? <...
Which visualization is best for showing trends over time?
In developing a fraud detection model for online transactions, a data analyst should use a technique capable of identifying anomalous patterns. Which of...
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