Find Interview Questions for Reval analytics

Right Answer:
SQL (Structured Query Language) is used in data analysis to query, manipulate, and manage data stored in relational databases. It allows analysts to retrieve specific data, perform calculations, filter results, and aggregate information to derive insights from large datasets.

Right Answer:
Correlation is a statistical measure that indicates the extent to which two variables fluctuate together, while causation implies that one variable directly affects or causes a change in another variable.

Right Answer:
Classification analysis is a data analysis technique used to categorize data into predefined classes or groups. It works by using algorithms to learn from a training dataset, where the outcomes are known, and then applying this learned model to classify new, unseen data based on its features. Common algorithms include decision trees, logistic regression, and support vector machines.

Right Answer:
Descriptive statistics summarize and describe the main features of a dataset, using measures like mean, median, mode, and standard deviation. Inferential statistics use sample data to make predictions or inferences about a larger population, often employing techniques like hypothesis testing and confidence intervals.

Right Answer:
The different types of data analysis are:

1. Descriptive Analysis
2. Diagnostic Analysis
3. Predictive Analysis
4. Prescriptive Analysis
5. Exploratory Analysis

Right Answer:
- **Union**: Combines the results of two queries and removes duplicates. It returns all unique rows from both queries.

- **Intersect**: Returns only the rows that are common to both queries. It shows the intersection of the two result sets.

- **Minus**: Returns the rows from the first query that are not present in the second query. It shows the difference between the two result sets.

Right Answer:
I encourage job seekers by providing personalized feedback on their resumes and interview skills, sharing job search strategies, and connecting them with networking opportunities. I also motivate them by celebrating small achievements and reminding them of their strengths.

Right Answer:
The half-life period of a drug is the time it takes for the concentration of the drug in the bloodstream to reduce to half of its initial value.

Right Answer:

The investment of 600 crore seems high compared to the potential revenue from selling the product at 15 lakh per house. To assess viability, we need to calculate the break-even point and consider market demand, competition, and potential barriers to adoption. If the market is large enough and the product is competitive, it could be a worthwhile investment; otherwise, it may pose significant financial risks.

Right Answer:
In a previous project, our team had conflicting ideas about the approach to take. I noticed the tension and decided to facilitate a meeting where everyone could express their views. I encouraged open communication and helped us find common ground. By focusing on our shared goals, we developed a compromise that incorporated elements from each perspective. As a result, we improved our collaboration and successfully completed the project on time.

Right Answer:
Yes, they should consider buying the company if the database provides valuable insights, has a competitive advantage, and can generate revenue through licensing or services.