Understanding Variance in Data Science and AI In today’s post from Post Network Academy, we will dive into an essential concept in statistics: the variance of discrete frequency distributions. Variance plays a crucial role in data science, AI, and analytics, so let’s break down what we learned. What is Variance? – Variance measures how far […]
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Simple LED Blinking with Arduino In this post, we’ll explore a basic Arduino sketch that demonstrates how to control multiple LEDs using digital pins. This example will help you get started with pin control and timing using the Arduino Wokwi platform. Circuit Setup: 1. Connect the anode (long leg) of each LED to pins
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Summary of Video on Variance of Discrete Frequency Distribution Presenter: Bindeshwar from Post Network Academy Key Points: 1. Definition of Variance: Variance measures the dispersion of data points in a distribution. For discrete frequency distributions, the formula incorporates frequency (fi). Formula: \[ \text{Variance} = \frac{1}{n} \sum_{i=1}^{n} f_i (x_i – \bar{x})^2 \] Where \( \bar{x} \)
Data Science and AI :: Weighted Mean Introduction Hi everyone, I am Bindeshwar from Post Network Academy. In the last video, I explained the concept of mean and its properties. Today, we’ll dive into the topic of the weighted mean. What is Weighted Mean? As the name suggests, the weighted mean assigns different weights
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Understanding Variance: A Practical Example In our recent Data Science and AI lecture, we explored the concept of variance—a crucial measure in statistics that indicates how spread out a set of data points is around their mean. Today, we’ll dive into a practical example involving a batsman’s scores over ten matches. The Problem Let’s consider
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This post is part of free course Understanding Key Properties of the Arithmetic Mean Welcome to Post Network Academy! In this post, we’ll explore two fundamental properties of the arithmetic mean that are essential for anyone delving into data science and artificial intelligence. Mastering these concepts will not only enhance your statistical knowledge, but also
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Understanding Averages: Measures of Central Tendency Hi everyone! I’m Bindeshwar from Post Network Academy. In this post, we’ll dive into averages, also known as measures of central tendency. These concepts help us understand the central part of data distribution, giving us a clearer picture of the data we’re working with. What Are Measures of Central
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Exponential Distribution Formula A random variable X is said to follow Exponential distribution if it has the following probability density function the value f(x) is zero when x < 0 otherwise it is equal to f(x). Moment Generating Function The moment generating function (MGF) is a powerful tool in probability theory and statistics used to
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Definition of Artificial Intelligence, Niti Aayog, India “AI refers to the ability of machines to perform cognitive tasks like thinking, perceiving, learning, problem solving and decision making. Initially conceived as a technology that could mimic human intelligence, AI has evolved in ways that far exceed its original conception. With incredible advances made in data collection,
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