# Category Pre-statistics

Build a solid foundation in statistics with our beginner-friendly explanations and examples.

## How to Find a Factorial: By Hand, Excel, R

Today, we’ll dive into something incredibly exciting – how to find a factorial. Before we get into the details, let’s briefly discuss factorials and why they matter. A factorial, typically represented by an exclamation mark (!), is the product of…

## How to Round Numbers By Hand, Excel, and R Easily

Welcome back to another exciting adventure in the world of numbers and pre-statistics. Today, we’re going to learn how to round numbers to X decimal places effortlessly. Lesson Outcome: By the end of this lesson, you should be able to:…

## How To Convert Decimals to Percentages in No Time

Ready to learn how to convert decimals to percentages in three different ways? In this article, we’ll show you how to make that conversion manually, using Excel and R programming. Let’s get started! How To Convert Decimals to Percentages Manually…

## How To Convert Percentages to Decimals The Easy Way

Hey there, stats enthusiast! So, you’ve got a percentage and want to convert it to a decimal, huh? You’re in luck! Today, we’re going to show you how to convert percentages to decimals using three different ways: manually, in Excel,…

## How To Take A Simple Random Sample In 4 Easy Steps

Simple random sampling is the most common type of sampling strategy used in statistics, where a simple random sample represents a subset of individuals randomly picked from a larger population. The simple random sampling approach is most widely used because…

## How To Generate Random Numbers In Excel

To generate random numbers in Excel is a simple, straightforward process done in a minute. All are is required to learn how is three formulas, a few clicks, and a few minutes of your time.  Generating a set of random…