CVS health sql questions senior data scientist reddit
CVS health sql questions senior data scientist reddit: At the end of the day, it’s incredibly easy to get lost in your job or think you know what you’re doing, but even the most seasoned professionals can benefit from other perspectives on their work, especially from experts in the same field! This reddit thread from /r/bigquery has some amazing questions and answers from senior data scientists working at CVS Health (CVS). Ask your data science peers about their thoughts on these questions or even about something related to data science! They might just share their knowledge with you!
What You Should Know About Data Science
Data Science is a field of study that applies statistics, machine learning and other quantitative techniques to extract knowledge from large sets of data. Data science is helping to take the guesswork out of decision-making by providing companies with new insights into consumer behaviour. That’s why it’s also known as big data. The demand for qualified professionals has increased dramatically in recent years, making this an exciting time to enter the field. If you’re considering entering this competitive but rewarding field, keep reading below for an overview of some things you should know about becoming a data scientist
The Best Backgrounds for Becoming a Data Scientist
CVS health sql questions senior data scientist reddit: Data scientists are in demand, but the field is also highly competitive. So what can you do to set yourself apart? Here are five steps to take to make sure you’re as prepared as possible. 1) Find your niche. There’s no one perfect way to become a data scientist–rather, it’s an amalgamation of many different skills and interests. 2) Learn how to code, then learn how not to code: Becoming a proficient programmer will provide invaluable knowledge and will allow you to create statistical models with ease if your background doesn’t already include this skill.
The Best Degrees to Pursue If You Want to Be a Data Scientist
Data science is one of the most sought-after job fields in the world, but many people don’t know what the requirements are. The good news is that there’s a variety of degrees to pursue if you want to be a data scientist. Some of the best degrees are computer science, math, statistics and operations research.
These four majors will provide you with a strong foundation for your future career in data science. First, those who choose to major in computer science can gain experience with programming languages like Java or Python which are essential skills for anyone who wants to work as a data scientist. Those who major in mathematics will learn skills like probability theory, linear algebra and differential equations which they can use as they continue their education on their way to becoming an expert at solving problems using math.
Other Skills That Are Valuable in the Workplace
There are a number of skills that are valuable in the workplace and can help you stand out from your peers. Communication skills, creativity, empathy, and adaptability are just a few examples of skills that employers look for. It’s important to keep these skills sharp while looking for jobs so you’re prepared to perform well on interviews. It also helps if you already have experience with these particular areas of expertise or are willing to develop them outside of work hours!
Data science technical interview questions
1) What are the differences in calculating a correlation coefficient for both continuous and categorical variables?
2) What is the difference between supervised and unsupervised machine learning? How do they differ in their use cases? What are some examples of each type of ML? What are some use cases that would warrant the need to utilize unsupervised ML techniques?
3) What is your favorite machine learning algorithm and why?
4) What is an ensemble method, and how does it work?
5) What are the pros/cons of using neural networks as opposed to traditional regression models? 6) What is feature engineering, and what methods can be used when performing this task?
7) Do you have any advice on how one should tackle memorization issues with regards to data science knowledge? 8) How does one manage information overload when working in Data Science?
Reddit data science interview questions
I’ve worked in the IT industry for about a decade. I’m currently working as a Senior Data Scientist at CVS Health, which is a job that combines my interests in machine learning and healthcare.
How did you get into Data Science? What advice would you give to someone trying to break into the field?
I got into data science by accident. I was doing software engineering when I took an exploratory graduate course on machine learning and found myself hooked.
Best interview questions for data Scientists
In this post, we take a look at the best interview questions for data scientists. We hope that these will help you in your search for the perfect candidate to fill the role of data scientist. Here are four more!
What is the curse of dimensionality? How can it be reduced? Dimensionality is defined as the number of variables used to characterize an object. Reducing dimensionality entails removing those variables with little predictive power or explanatory value (less than 10% contribution). By doing so, the model becomes easier to train and less prone to overfitting. What are some common types of classification models?
entry level data scientist interview questions
- What is a measure of central tendency?
- How do you calculate the coefficient of variation?
- What does Spearman’s rank correlation test measure?
- Why would you use t-tests instead of one-way ANOVA in some cases?
- What are confounding variables?
- What is Bayes’ theorem and how does it relate to conditional probability?
- Describe the difference between a categorical variable and continuous variable
- What is the Central Limit Theorem and how can it be applied to sampling distributions
- Explain Simpson’s paradox 10. What are categorical variables, and what are continuous variables 11a. Give an example of a categorical variable 11b. Give an example of a continuous variable
Amazon data scientist interview Reddit
I’m a new Data Scientist and am trying to get an idea of what the interview process is like. I’ve been reading posts on Reddit, but am not sure what’s more important to know as an Amazon Data Scientist. Can anyone offer advice? Here are some responses from that thread:
Another user who works at Amazon writes, One thing that you need to do before coming in for an interview is make sure you’re up-to-date with your skills. For example, if you’re applying for a position that uses SQL and Python programming languages but you don’t have any experience with SQL or Python then it would be wise for you to take some time beforehand to brush up on those skills.
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