From the course: CompTIA Data+ (DA0-002) Cert Prep

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Statistical methods

Statistical methods

From the course: CompTIA Data+ (DA0-002) Cert Prep

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Statistical methods

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- Let's talk about statistics. Now, I know this is a topic that can feel intimidating, but don't worry, we're going to walk through everything that you need to know for the Data plus exam in clear, simple terms. My goal is to make these concepts not only understandable, but also useful so that you can apply them confidently in your work. Let's start at the beginning. What is statistics anyway? Well, it's the practice of applying mathematical techniques to data so that we can analyze it, interpret it and present it in ways that help others make decisions. When we use statistics in a business or data analysis context, we're typically working with one or more of four main types, descriptive, inferential, predictive and prescriptive statistics. Descriptive statistics are where most people start. These methods help you summarize and describe the main features of a dataset. Think of measures like averages, medians, standard deviations and simple charts. They don't make predictions or test…

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