**Grade 11 Algebra II Module 4 Lessons 18–19**

How can you tell if a sample is accurate? Join Mr. Spicer to learn how the size of a random sample impacts the accuracy of predicting the value of the population mean. You will need a pencil, paper, graphing calculator, and a copy of the Random Segments document. If you have access to a workbook, or a printer, we also suggest using the Classwork for the lesson, which is available using the link below the video.

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### Student & Family downloads

Lesson 18 Student Materials

Lesson 18 Homework Helper

Lesson 18 Exercises 1-7: Random Segments

Lesson 19 Student Materials

Lesson 19 Homework Helper