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 …
Numbers can sometimes be too large or too small to be expressed normally. If you’re working on a problem involving the weight of the earth or the size of an atom, writing down or entering several zeroes in a calculator is inconvenient at best. Writing scientific notation is one of the easiest ways of expressing …
Electronic calculators have been around for centuries, and they’ve gotten progressively better. However, the first scientific calculator was invented and released to the masses only decades ago, in 1968. These devices are now a common sight in classrooms globally – but what exactly are they? Furthermore, how are they different from basic calculators? I’ve outlined …
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 …
Comparing the means of two populations becomes easy with the help of two-sample t-tests. The results of these tests help determine if there is a big difference between the means of the samples. Furthermore, if the test outcome reports a large difference between the means, it means that the data samples are strong, and the …
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 …
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, …
While scientific calculators are designed to help solve complex engineering, physics, math, and chemistry problems, like business calculators, they display fractions as decimals by default. This means if you enter a fraction like ¾ on the calculator, the display will read 0.75. However, most scientific calculators have a feature that enables you to display fractions …
Logarithms are easy to understand. They are functions that help you determine what exponents must be multiplied into a specific number. As you move on to learn advanced math, you will need to use scientific calculators to calculate log values quickly. These calculators are very different from basic and business calculators and come loaded with …
T-tests are some of the most commonly applied statistical tests in all of math. If you pick up any research paper, chances are, you will see p-values in it. Learning to do T-tests by hand and finding the p-value (with the help of a T-distribution table) will help you understand how hypothesis testing works much …