 # Election Poll, Variation 2

#### Resource ID#: 42458

This document was generated on CPALMS - www.cpalms.org

This task introduces the fundamental statistical ideas of using data summaries (statistics) from random samples to draw inferences (reasoned conclusions) about population characteristics (parameters). In the task built around an election poll scenario, the population is the entire seventh grade class, the unknown characteristic (parameter) of interest is the proportion of the class members voting for a specific candidate, and the sample summary (statistic) is the observed proportion of voters favoring the candidate in a random sample of class members. Variation 2 leads students through a physical simulation for generating sample proportions by sampling, and re-sampling, marbles from a box.

### General Information

Subject(s): Mathematics
Intended Audience: Educators , Students , Parents

Instructional Time: 15 Minute(s)

Freely Available: Yes
Keywords: Election Poll Variation 2, election, poll, sample, statistics, population, cpalms, icpalms, illustrativemathematics.org, illustrative mathematics, tasks, mathematics, math, Florida standards, resource, free, freely available, problems-based learning, student activities, random sample, inference
Instructional Component Type(s):
Resource Collection: Illustrative Mathematics

#### Aligned Standards

 Name Description MAFS.7.SP.1.2: 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. For example, estimate the mean word length in a book by randomly sampling words from the book; predict the winner of a school election based on randomly sampled survey data. Gauge how far off the estimate or prediction might be.