What are two regression lines? The first is a line of regression of y on x, which can be used to estimate y given x. The other is a line of regression of x on y, used to estimate x given y. If there is a perfect correlation between the data (in other words, if […]

What measure of spread is most affected by outliers? The shape of the data and any outliers determine how to measure center and spread. Extreme outliers will affect the mean, so the median would be an appropriate measure in that case. Is the range affected by outliers? This is, in fact, the biggest limitation of […]

Does normalization remove outliers? 1 Answer. Normalisation is used to transform all variables in the data to a same range. It doesn’t solve the problem caused by outliers. Should outliers be removed before PCA? 1 Answer. As a very general rule, the proper treatment of outliers depend on the analysis purpose – if you’re looking […]

What job pays the most at 16? High-paying jobs for teens Landscape laborer. Dog walker. Youth sports referee. Babysitter. Delivery service driver. National average salary: $16.81 per hour. Pet sitter. National average salary: $37,861 per year. Automotive technician. National average salary: $19.55 per hour. Tutor. National average salary: $21.31 per hour. What age does Sam’s […]

Are 17-year-olds allowed to work full time? Employees 17 and older can work any number of hours and any days of the week under the federal law. The only restrictions the FLSA places on 17-year-olds pertain to the jobs or occupations in which they can be employed. What is a good starting job for a […]

What happens if I work without a work permit? Working in the United States without a work permit can put your entire green card application at risk. You are required to have a work permit even for short-term or informal employment. Getting paid for even just a few hours of work without authorization can cause […]

Can I get a work permit without a job offer in Canada? In order to qualify for this status, you must be a skilled professional or trades-person with a certain amount of work experience. You don’t have to have a job offer in order to apply to be a part of the Express Entry system. […]

What foods help you focus? 9 brain foods that will improve your focus and concentration Blueberries. Studies show that blueberries boost “concentration and memory” for up to five hours because “the antioxidants in blueberries stimulate the flow of blood and oxygen to [your] brain – and keep the mind fresh”. Leafy green vegetables. Fatty fish. […]

What food helps you concentrate while studying? 11 Best Foods to Boost Your Brain and Memory Fatty Fish. When people talk about brain foods, fatty fish is often at the top of the list. Coffee. If coffee is the highlight of your morning, you’ll be glad to hear that it’s good for you. Blueberries. Turmeric. […]

How do you ask for feedback from a professor? Ask for feedback on a paper or exam you’ve already turned in. You simply need to email the professor and be polite. If the professor has office hours, you can visit those, or make an appointment. You can say, “Dear Professor Smith, I didn’t do as […]