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Curated Video
Statistics & Mathematics for Data Science and Data Analytics - Sample Versus Population
This lecture will explain the fundamental difference between a sample and a population in statistical data.
Curated Video
Fundamentals of Machine Learning - Sampling and Bootstrap
This video explains the two most famous and common procedures—cross-validation and Bootstrap.
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This clip is from the chapter "Lectures" of the series "Fundamentals of Machine Learning".This section explains the basics of...
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This clip is from the chapter "Lectures" of the series "Fundamentals of Machine Learning".This section explains the basics of...
Curated Video
Determining Sampling Methods in Statistical Investigations
In this video, the teacher explains how to determine a researcher's sampling method. They discuss the difference between a population and a sample, and the importance of having a representative sample. They explain the concepts of simple...
Curated Video
Identify the Best Way to Sample a Population
In this short video we will answer a standardized math test question where we are asked to identify the best representative sampling of a population. We will review each answer choice looking for bias and selecting the most random...
Curated Video
Understanding Populations and Samples: Importance of Representative Samples and Large Sample Sizes
This video explains the concepts of populations and samples in statistical analysis. It defines population as the overall group of interest, and sample as a subset of the population used to infer information about it. The video...
Curated Video
Identifying Samples in Population Studies
In this video, the teacher explains the concept of collecting data about a population by identifying a sample. They use examples of predicting the winner of an election and tracking migration patterns of a bird species to illustrate how...
Curated Video
Random Sampling
In this math video we will learn about random sampling that is representative of a population for a survey. Students will identify if a sample of a population is a valid representation. We will learn key vocabulary - population, random...
Curated Video
Introduction to Sampling in Statistics
This video introduces the concept of sampling in statistics by using relatable examples. It begins by explaining the challenge of collecting data from an entire population, such as residents in a town, and introduces sampling as a...
Curated Video
Statistics for Data Science and Business Analysis - Understanding the Difference Between a Population and a Sample
This video helps in understanding the difference between a population and a sample. Furthermore, you will know the difference between a random sample and a representative sample.
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This clip is from the chapter "Introduction...
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This clip is from the chapter "Introduction...
Curated Video
Making Inferences about a Population Using Random Samples
In this lesson, students will learn how to use random sampling to make inferences about a population with an unknown characteristic. They will understand the importance of having a representative sample and the limitations of making...
Curated Video
Choosing the Right Sample Size: Reducing Variation in Statistics
In this video, the concept of sampling in statistics is explained using examples of a fitness club and a history exam. The importance of random sampling and avoiding biased samples is emphasized. The video also highlights the...
Curated Video
Sampling Techniques: Methods for Choosing a Representative Sample
This video is a lecture on different types of sampling techniques. The speaker explains the purpose of taking samples and the importance of having a representative sample in order to infer information about the overall population. They...
Curated Video
Generating a Representative Sample: Types of Random Samples
This video explains the importance of generating a representative sample for predicting election outcomes or making valid inferences about a population. It introduces three types of unbiased sampling methods - simple random sample,...
Curated Video
Identifying and Avoiding Biased Samples
In this video, students learn about generating unbiased samples to obtain a representative sample of a population. The video discusses the types of biased sampling methods, such as convenience samples and voluntary response samples, and...
Curated Video
Introduction to Sampling in Marketing and Research
This video gives an introduction and overview of sampling from a marketing perspective. The speaker explains the different types of sampling techniques such as random sampling, quota sampling, and stratified sampling, and provides...
Curated Video
Determining Researcher Sampling Methods: Cluster Samples vs. Stratified Samples
This video discusses different sampling methods used in statistical research, specifically focusing on cluster sampling and stratified sampling. It explains how each method is generated and provides examples to illustrate their application.
KnowMo
Types of Data and Sampling in Statistics
This video provides an overview of different types of data and sampling methods for data collection in statistics. The speaker identifies two key types of data - quantitative and qualitative - and explains their subcategories such as...
Curated Video
Statistics for Data Science and Business Analysis - Calculating Confidence Intervals for Two Means with Dependent Samples
This video shows real life examples of confidence intervals on dependent samples.
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This clip is from the chapter "Confidence Intervals" of the series "Statistics for Data Science and Business Analysis".This section focuses...
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This clip is from the chapter "Confidence Intervals" of the series "Statistics for Data Science and Business Analysis".This section focuses...
Crash Course
Sampling Methods and Bias with Surveys - Crash Course Statistics
Today we’re going to talk about good and bad surveys. From user feedback surveys, telephone polls, and those questionnaires at your doctors office, surveys are everywhere, but with their ease to create and distribute, they're also...
Crash Course
Degrees of Freedom and Effect Sizes - Crash Course Statistics
Today we're going to talk about degrees of freedom - which are the number of independent pieces of information that make up our models. More degrees of freedom typically mean more concrete results. But something that is statistically...
Science360
Butterflies And Bats Reveal Clues About Spread Of Infectious Disease
There's a most unusual gym in ecologist Sonia Altizer's lab at the University of Georgia in Athens. The athletes are monarch butterflies, and their workouts are carefully monitored to determine how parasites impact their flight...
KnowMo
Introduction to Sampling: How to Select a Representative Sample
This video is a lecture about sampling, which is a method used to collect and analyze data about a population. The lecturer explains that it is often not feasible to collect data from every member of a population, so a sample is taken...
Curated Video
Understanding Population and Sample in Statistical Studies
This video explains the relationships between population and sample in the context of a statistical study on high school students with driver's licenses. It discusses the definitions of population, sample, sampling frame, and census, and...
Curated Video
Taking a Random Sample
In this video, the teacher explains the concept of using a sample to estimate a population parameter. They discuss the difference between a population and a sample, as well as the importance of randomization in selecting a representative...