## 17 Equations that Changed the World

We encounter mathematics on a daily basis, and it has greatly influenced how we perceive the world. Equations are present everywhere and are essential to daily life, from Newton’s Law of Gravitation to the Black-Scholes model used by bankers to forecast the markets. A book titled “17 Equations That Changed the World” was published in …

## A Comprehensive Guide to Limit Comparison Tests

Using the limit comparison test is one of the easier ways to compare the limits of the terms of one series to another and check for convergence. It is different from the direct comparison test and the integral comparison test, both of which are just as well-known. The direct comparison test compares the terms in …

## Step-by-Step Guide To Using A Limit Calculator

Whether you want to verify your answer or skip calculating limits entirely, a calculator will help you. But there’s more that calculators can do for you. Some limits problems cannot be solved algebraically, but a calculator can solve these problems.   Working with limits on a calculator is a little complicated. There are no buttons that …

## What Is The Square Root of 2 And How To Find It

Understanding and working with the square root of 2 is critical to solving algebra and geometry problems. While you can always use a scientific calculator to do it, learning how to calculate the square root of 2 by hand can help when you don’t have one. In this post, we will go over the origins, …

## How to Type Square Root

The square root symbol isn’t a basic mathematical operator, which is why it isn’t on your keyboard, regardless of whether you’re using a Windows machine or a Mac.  However, both of these operating systems make typing square root convenient and uncomplicated.  In this post, we discuss the various ways you can type square root on …

## How to Find the Square Root of a Number

It’s not uncommon for students to come across problems that require finding the square root of a number. While it’s easy to rely on a scientific calculator or a smartphone, learning how to find square root by hand can help understand the concept of square roots at a deeper level.  There are a few different …

## How to Calculate Grade Percentage?

Calculating your courses grade is a useful skill to have. It will help you understand where you stand and how much progress you’ve made. Furthermore, it will help you determine how much more work you need to put in to earn the grade you want.  A 1979 Harvard Business Study found that students that set …

## What Will My Grade Be?

Effective goal setting is one of the most powerful tools students use to ensure exam success. A 2015 Harvard Business study revealed that individuals with goals typically find ten times more success than people that don’t set any goals. Looking through the course of study and setting weekly study goals is an effective strategy to …

31% percent of surveyed students report that finals week is the most stressful time of the semester. However, the exams are rarely the last of a senior’s worries.  To calculate your final grade, you will need to find the sum of your weighted grades. But it’s also possible to calculate the grade you require on …

## How to Use Scientific Calculator

Regardless of whether you’re looking to do plain arithmetic or want to solve complex science and engineering problems, you can rely on a scientific calculator to help. Getting acquainted with a scientific calculator’s functions can be challenging. Going through the manual is an option, but the instructions can sometimes seem needlessly convoluted.  Here’s an easy …

## How to Find Standard Deviation On A Calculator

If you’re taking an introductory statistics course, you’ll find out sooner than later that there’s no need for you to calculate standard deviation by hand all the time. While some statisticians-in-training get access to computers in class and use R or SAS to calculate standard deviation, many don’t have that luxury.  But luckily, graphing calculators …

## When To Use Paired t-Test

A t–Test in statistics is a hypothesis testing method that facilitates the comparison of the results (more specifically, the means) of two scenarios.  These tests are termed “t-Tests” because they boil the sample data down to one number called the t-value. Paired t-Tests are a variation of regular t-Tests, and these tests only work on …

## How To Interpret T-Test Results

In statistics, hypothesis tests enable you to gauge whether the results of a study, experiment, or survey have produced meaningful results. T-tests are of different types and can be used under different circumstances. If you need to compare a mean to a hypothesized value, you can use a simple one-sample T-test. On the other hand, …

## How To Do T-Test?

In this article, we will achieve a clear understanding of  The definition of t-test, different terminologies/ factors involved in conducting t-test like mean, variance, standard deviation, significance level, degree of freedom, t-value, and p-value, assumptions for t-test calculation, different kinds of t-tests, how to do the test for each kind of t-test, and how we …