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 sample of a population, unbiased sample, and inference. Students will use random samples to make inferences and predictions about a population. We will begin by identifying the population and the random sample from real world situations. We will then determine the best way to survey a population that is representative of the entire population. We will also use survey data to predict the outcome for the entire population. Student practice is included in the video with modeled exemplar solutions.
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00:00 Introduction
00:16 Student Lesson Objectives
00:32 Essential Question
00:46 Lesson Vocabulary
01:46 Identify a Population & Random Sample
03:38 Identify the Best Representation
06:01 Student Practice #1
08:00 How to Draw an Inference or Make a Prediction
10:36 Student Practice #2
12:58 Solution
Use random sampling to draw inferences about a population.
7.SP.A.1 Understand that statistics can be used to gain information about a population by examining a sample of the population; generalizations about a population from a sample are valid only if the sample is representative of that population. Understand that random sampling tends to produce representative samples and support valid inferences.
7.SP.A.2 Use data from a random sample to draw inferences about a population with an unknown characteristic of interest. Generate multiple samples (or simulated samples) of the same size to gauge the variation in estimates or predictions.
11 сен 2024
