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Organizations in all industries rely on raw data to make critical business decisions. The raw data includes sales, social media, inventory, etc. They use this data to develop new products, to enter into new markets, to make investments, and even to target customers. Hence, comes the role of a Data Analyst
It is very difficult to handle the raw data for the organizations so, and there comes the role of a data analyst. Data analyst is the one who collects the data, processes the data, and organizes data into the charts or graphs, or assigns the numerical value for the better understanding and taking important business decisions. With the growing dependency of companies on data analysts, professionals are considering taking data analytics courses to get ahead in this domain.
What does a Data Analyst can do?
Data analysts ascertain how data can be used to answer questions and solve real-life problems. They typically work with the computer system and calculation applications to figure out numbers. Also, they need to have the ability to present the data in interesting ways and explain the actual differences in numbers they make in the future.
Key responsibilities of a Data Analyst
- Collecting and interpreting the raw data
- Analyzing the results from the interpreted data
- Reporting the results in an interesting and understandable way
- Identifying patterns and trends in data
- Designing, creating and maintaining a database
- Defining new data collection and analysis processes
Qualification required for Data Analyst
Degree in mathematics, computer science, statistics, and economics subjects is beneficial in developing a career in data analysis.
Skills required for Data Analyst
- Ability to analyze large data
- Ability to write comprehensive reports
- Strong verbal and non-verbal skills
- An analytical and problem-solving mind
- Attention to details
How to prepare for the Data Analyst interview
Now comes the question How should I prepare for the role of Data Analyst? And How should I prepare for the interview?
Not every data analyst role is the same in the company, and it may vary in various stages of business growth with a different set of data challenges.
Remember they are hiring you to solve their problems, so go through the company profile for a better understanding of the business they do
- What is their business model?
- How do they make money?
- What are the important metrics to track?
- At the time, what might be their data problem?
- How are their customers like?
These questions will help you get a clear idea of the company and business they do. This is the first level of preparation for the interview.
Here comes the second level of preparations that are reviewing your skills, it is all about knowing where you fit in these 3 parameters,
- Business sense
- Data or number sense and
- Database sense
Good Business Sense
For a Data analyst, it is not just assigning a numerical value to the raw data, but it is to have a piece of knowledge to analyze the business model and should be able to detect the threat.
A good analyst should have a good business sense and technical knowledge in the business world that comes with experience, critical thinking, and plenty of trial & error.
Data or number sense
A data analyst should work with numbers, and there is no escape from numbers in analytics. Numbers serve as a measurable value that supports decision making in a company.
A good analyst should have a good sense of numbers, having the ability to make sense of numbers will let you speak about the company fluctuations and explains a picture of the current situation.
The analyst should know what number to be chosen to make the best sense of data report, and what kind of KPIs should be used to know who the business is doing. And it raises the question to review the calculations and company conversions.
Good Database skills
For a Data analyst, it is a must and should the requirement of having good technical skills and be able to operate different programming languages such as Python, R, SQL, etc.
SQL is a basic database management language you need to focus on, SQL is the ruling language in the analytics world, and it continues to rule.
Last but not least, start attempting practice questions. By doing this, you can take inspiration for yourself and understand what an employer wants to see in you.
It is always suggested to show your interesting projects related to data analysis and exclude mini-projects that you have never really done.
Showcase your degrees that indicates your potential work and interest in the field of data analysis.
A problem-solving approach is very important for data analysts so, it is well and good to practice at least 20 data analysis questions before you go for an interview.
Keep reading various blogs and communities related to data analysis.
Try to attend conferences and meets, which can develop more understanding of data analysis.
Be very creative during your interview.
Internships online coaching is a better way to start your career to data analyst.
Interview question of Data analyst
Here are some interview questions and topics. For better understanding, I have divided it into different sections.
Basic Data Analyst Questions
Here the interviewers ask the fundamental question related to the Data Analyst and its terminologies. For example,
Differentiate Data Mining and Data Analysis?
What is the process of Data Analysis?
Define Data Mining and Data Profiling?
Excel Data Analyst Questions
Excel is the simple software used to do quantitative analysis, statistical analysis with an intuitive interface for data manipulation. They ask a question related to this,
What is a waterfall chart, and when do you use it?
How to highlight negative values cells in Excel?
Statistics Data Analyst Questions
Statistics dealing with data collection and organization, analysis, interpretation, and presentation, the question related to this is,
Define the term Normal Distribution?
What is A/B Testing?
What is the statistical power of sensitivity?
SAS Data Analyst Questions
SAS stands for Statistical Analysis System, which can process complex data and generate meaningful insights that help to make decisions in the business.
What is interleaving in SAS?
Write the basic syntax style of code in SAS?
Explain Do Index, Do While, and the Do Until loop with examples.
SQL Data Analyst Questions
SQL is known as Structured Query Language used to manage data when you do well in SQL questions, as it will be evident in your interviewer that you know how to handle databases.
What is the default port for SQL?
What do you mean by DBMS? What are its different types?
What is ACID property in a database?
Tableau Data Analyst Questions
Tableau is a program for business intelligence that lets anyone connect to the data. It visualizes and creates interactive, shareable dashboards.
Give the difference between Tableau and Power BI?
What is a dual-axis?
What is joining and blending in Tableau?
Puzzle Data Analyst Questions
The analytic industry relies primarily on professionals who specialize in different market-based data analysis methods, but also on those professionals who have outstanding troubleshooting skills. The approach to the problem is an essential skill you need to possess. Oh yes, you should be able to explain to the interviewer your approach as well.
At the end
In this article, we discussed who a data analyst is? What does he do? And responsibilities, qualifications & skills required for the data analyst. We also went through the preparation and tips to crack the data analyst interview.
Now it’s up to you, follow the proper guidelines and keep practicing the things because new data is generated huge, there are various problems in processing this data so, always keep tracking the latest technologies and techniques to solve these problems.
It will be great if you want to share your journey as a Data analyst with us. Your trip might inspire someone to become a data analyst.
By Prerana Agarwal Saxena
In all the wedding excitement, it's easy to overlook the impact a wedding has on the environment. While everyone is making their big fat Indian wedding dreams come true, they are also adding their carbon footprint and undue energy consumption. Modern couples are now looking for ways to have a wedding with a sustainably conscious mindset. It's become about incorporating less waste, locally sourced and seasonal food, natural materials over the use of plastic. Mindful wedding planning and decor includes the use of recycled paper and goods along with eco-friendly venue needs. Check out this quick guide to achieve a sustainably conscious wedding without compromising on luxury:
Choose locally sourced material to uplift artisans
Sustainable can be luxurious too, incorporate some native flavour into the decor and theme. With the use of locally sourced materials and local artisans coming into play, the wedding instantly becomes sustainable. Include the work of local vendors ensure minimal packaging requirements, thus saving on unnecessary plastic and lamination. It also decreases the need for transporting elements from other cities and hence lowers the carbon footprint. For instance, at one of our weddings, we made use of sand art for a setup in Jodhpur. This helped promote local work while also being environmentally friendly with zero wastage of other materials. In another instance from Rajasthan, the traditional glass-blown technique was used to build decor items while giving a cultural touch to the destination wedding.
Sustainable can be luxurious too, incorporate some native flavour into the decor and theme. | Photo by Jason Coudriet on Unsplash
Say yes to recycling
One should be mindful and avoid the use of plastic and other non-recyclable materials in decor wherever possible. It can be a small step such as making a conscious switch from plastic water bottles to copper jugs or glass bottles. Also use artificial floral decor thus minimising the wastage produced from real flowers. This recyclable decor is then donated to various NGOs, further ensuring sustainable use of resources. Such steps, however small they might be, keep the environment free from the release of any additional carbon footprint.
One should be mindful and avoid the use of plastic and other non-recyclable materials in decor wherever possible. | Photo by Ravin Rau on Unsplash
Go for zero-waste wedding decor
Make use of fabric as it enhances the elegance of the wedding while being sustainable. Include vibrant colours apt to the theme of the wedding and bring in bright sprightliness with breathable fabrics. Ensure to include LED lights for lighting. They can be incorporated as string lights or be used on passageways with innovative decor items. They also help conserve energy and bring in soulful energy for nighttime decor. Choose virtual invitations, keeping up with the digital times. Make a conscious choice of plated dinner menus rather than a buffet as they allow less wastage of food and ensure enough food for guests in attendance.
LEDs can be incorporated as string lights or be used on passageways with innovative decor items. | Photo by Annie Spratt on Unsplash
Include Sustainable Gifting
Gift sustainable wedding favours -- gifts that grow. Offering a plant or a succulent, is a great idea. One can also gift recycled organic fabrics and cutlery or zero-waste kitchen and bathroom essentials to use in their homes as some distinct gifting options.
Gift sustainable wedding favours -- gifts that grow. | Photo by Kira auf der Heide on Unsplash
Acting in the best interest of the environment and the society, Theme Weavers Designs has started a social cause, Weaving Hope, where a part of their earnings along with food and decor are donated to social communities. Royal Rendezvous, is an event started by us to put India on the Global Map, inviting international wedding planners to India to experience the rich culture and heritage, also employing and displaying the work of local artisans to this international audience.
By applying the values of sustainability, you can reduce the energy consumed and the resources used as much as possible. Go ahead and have a luxurious zero-waste wedding and navigate into the world of green living! (IANS/ MBI)
Keywords: Luxurious , Gift, sustainable, wedding favours, gifts that grow. Gifting, recycling, locally sourced, material. zero-waste
The Tamil Nadu health department has administered 16,43,879 lakh doses of vaccine in the second mega vaccination camp organised by it. The state public health department in a statement on Sunday said that this has taken the total vaccination to one crore since the beginning of September till date. The vaccination was administered from 7 a.m. till 7 p.m. and the compiled data was made available late at night.
The health department officials also said that as the state has almost exhausted its quota of vaccines, there would not be any vaccines on Monday. Regular vaccination will resume after the vaccine supplies arrive from New Delhi, officials said. The state health department had expected to vaccinate 15 lakh people on Sunday in 18,824 centres spread across primary health centres, anganwadis, noon meal centres, government hospitals, schools and some auditoriums.
The health department officials also said that as the state has almost exhausted its quota of vaccines, there would not be any vaccines on Monday. | Photo by Mat Napo on Unsplash
Of the 16,43,879 people who were inoculated, a total of 10,85,097 received their first dose and 5,58,782 their second dose of vaccine, the statement said, A total of 9,66,568 people in the age group of 18-44 were vaccinated on Sunday and vaccines were administered on 5,02,578 people aged between 45- 59 in the mega vaccine camps.
State health minister Ma Subramanian, who inaugurated the vaccination at Pollachi, also visited the centres in six districts -- Coimbatore, Erode, Namakkal, Tiruppur, Dharmapuri and Salem. The state government, according to the health minister, is to receive the next allotment of vaccines on September 21. Minister while speaking to IANS said, "We will be receiving the next allotment of vaccines on September 21 itself and we will resume vaccinations immediately. The state has already touched one crore vaccine-mark in the month of September till date." (IANS/MBI)
Keywords: COVID, vaccine, vaccination camp, Tamil Nadu, India, vaccinated, mega camp
Festivals are just around the corner and while you brainstorm about OOTDs (outfit of the day), don't forget the right makeup. Hanisha Kapoor, COO, ArchiesBeauty.com shares makeup trends experimented by these Bollywood divas throughout 2021 for inspiration. While some stuck to the classics, others mixed it up... take a look:
The Classic Red Lip
We don't see a future where classic red lips go out of fashion. The right way to achieve this celebrity look is to focus on accentuating your lips and keeping the rest of the face minimal. Give your lips a good scrub to plump them, moisturize and follow it up with a red lip liner to define the shape of your lips. Now go on with the perfect shade of red and finish your look with a slick of eyeliner, minimal concealer, and foundation.
We don't see a future where classic red lips go out of fashion. | Photo by Ina Garbé on Unsplash
No Makeup Look
Deepika Padukon is the perfect example of a no-makeup look. This natural beauty does a wonderful job of achieving the minimal soft look by softly cover any dark spots or blemishes and highlighting features she's most proud of. To achieve this start with concealer and use small dots to brighten your darker areas like under eye, corner of the nose or upper lip, and any visible spots, and set it up with loose powder. Apply a soft pink lipstick, light blush, and mascara.
Deepika Padukon is the perfect example of a no-makeup look | Wikimedia Commons
This look shouts pink. When it comes to rosy looks, Janhavi Kapoor does a phenomenal job. Everyone should try a rosy look once in a while. As we are focusing on only one shade, this look is pretty easy to achieve. Bring out your favourite pink lipstick, favourite pink blush, and a matching shade of eye shadow. Start with the base - concealer, and foundation and set it up with loose powder. Follow it up with eyeshadow, lipstick, and blush. Remember to draw a line by not using any pink mascara, eyeliner, or a bold shade of lipstick, as this is meant to be soft on the eyes.
When it comes to rosy looks, Janhavi Kapoor does a phenomenal job. | Wikimedia Commons
Glass Skin Makeup
The glass skin makeup is inspired by Korean skincare. This look is slightly complex with an equal focus on skin before makeup, so slather on those moisturizing serums and creams to prep your skin first. Start with a highlighting primer, keep your foundation and concealer minimal to avoid looking cakey. Follow it up with soft blush & nude lips and lots and lots of highlighter. Use the highlighter on the main points of your face, like upper cheekbones, the centre of the forehead, the tip of the nose, cupid bone, and chin. If you are feeling a bit extra, don't hesitate to put some on your shoulders and collar bones. This celebrity makeup look makes your skin glow without the need for a spotlight.
The glass skin makeup is inspired by Korean skincare. | Photo by 邱 严 on Unsplash
Pop It Up
Put a zing to your party look with the pop of funky colour. This look is meant to get you in the mood of partying all night. This works with your eye makeup while keeping the rest of the face minimal. Start with the base - concealer, apply a bit extra on your eyelids to make the colour pop. Don't mind going the extra mile and colour blocking your eyes with complementary colours on eyelids and under the eye. Apply nude lipstick and a soft blush to balance your look.
This look is meant to get you in the mood of partying all night. | Pixabay
(Article originally published by N. Lothungbeni Humtsoe) (IANS/ MBI)
Keywords: Celebrity, makeup, Deepika, Jhanavi, Korean, Red Lipstick, Glass Makeup, Pop makeup