Learning Objectives

By the end of this article, you will be able to:

• describe multiple linear regression
• conduct multiple linear regression in R
• test for assumptions and diagnose problems with linear regression in R
• interpret a multiple linear regression model, and write a conclusion

Linear Regression

Scenario

You are interested in predicting physical and downloaded album sales from money spent on advertising.

Your boss comes into the office and asks how many albums you would sell if you spend $100,000 advertising.

How do you answer them?

Regression

Regression is a way of predicting the value of one variable from one (or more) other variables

Linear regression…

Four years ago, I embarked on a drastic career change from pre-med to product design. I dropped all my courses, attended a hackathon every weekend, and worked over 80–90 hours a week to land my first job as a data scientist.

It is amazing how much you can achieve in one year if you put the effort in and is willing to push yourself out of your comfort zone to fail fast and learn quickly.

1. Look out for your remote coworkers

Research done by Future Forum found that remote work can significantly improve job satisfaction for Black knowledge workers as compared to their white colleagues, doubling the sense of belonging at work, a 64% boost in managing stress, and a 25% improvement in work-life balance.

They also found that only 3% of Black knowledge workers surveyed in the U.S. want to return to full-time co-located work versus 21% of white knowledge workers. …

Building a custom software solution for your business can be a costly affair. It doesn’t matter if it is a startup or a large enterprise. But these huge costs would do more damage if you are a startup owner. So, you need to look for ways to minimize the costs as much as possible.

How could you do it?

Hiring a dedicated team of developers for your next software project is a sure way that you can reduce your overall development costs without giving up the fruitful benefits like access to skilled professionals, advanced technological resources, better flexibility, robust solutions…

In the early days of web development, it wasn’t uncommon for one person to do everything. The job title was often referred to as “webmaster,” “web designer,” or “web developer.” These days, there is often more specialization because the web has become so much more advanced. The different areas of focus are usually broken down into three categories: front-end, back-end, and full-stack.

Prefer to watch a video? This article is a companion piece for my Decoded by Christina series on YouTube.

Front-end vs Back-end vs Full-stack

Front-end

Front-end developers work with browser based languages: HTML for displaying content, CSS for adding styles and JavaScript for…

Having a decent product or service might have been enough to attract workers or customers and keep them in your court in the old days. Those days, however, are fading fast. On top of great services and products, people also demand that businesses keep their ethical bar high and connect with a real sense of individual and social purpose. It’s this exceptional moral operation that sets companies apart when products and services blur in appearance, quantity, or quality, and that marketers have to maintain as a core principle for building relationships, selling well, and contributing to growth.

Word of mouth works, but lies are no good

Now, if you…

1. Review resumes in the morning

Using data from a large recruitment platform, researchers at ETH Zurich analyzed how recruiters selected candidates. They found that unconscious racial bias was more pronounced by the end of the workday when recruiters were tired or wanted to leave work.

Wow.

So, in addition to other approaches you may already be taking to combat bias during the recruitment process, consider reviewing resumes in the morning when you and your recruiting team are fresh.

Looking for more ideas to be more inclusive during the hiring process? …

Years ago, I was working on a project with a tight deadline. And as so many of these projects are, it was underfunded and understaffed. The developers were working crazy hours to deliver on time. I remember going home from work to have dinner in front of my laptop, working late into the night, then getting up early to go to work again.

One morning I came into the office to find one of my female colleagues, let’s call her Jane, reduced to tears. She told me;

“It’s Rich,*he just doesn’t care. I have been working so hard and I…