Unit 9 Data Collection and Analysis

Lesson 3: Measures of Variation

Goal:

Know how to calculate, interpret, and compare measures of variation in a data set.

Essential Question:

How can you use quartiles to represent data graphically?

APK:

1. Find the missing values in each set of data.
14, 24, 12, 20, y, 22, 12: mean = 17
7, 13, 16, 9, k, 6; mean = 11
2. In your IN9, create and Effort/Understanding/Behavior chart, and rate yourself o a scale of 1-4 on what you think you will do today.

Vocabulary:

Write the following definition in your IN9.

variation (variability) - the spread of values

Check In Video

Learning Resources:

Watch the following videos.  Be sure to take notes in your IN9.

In-Class Worksheet:

With your partner, complete the Reading Strategies and Problem Solving Worksheets.
lesson_3_reading_strategies_and_problem_solving.pdf
File Size: 895 kb
File Type: pdf
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Check-In Video

Reflection/ Summary:

1. In your IN9, answer the following question(s).  
Question(s):
What does it mean to measure the variation in a set of data?

What descriptor's variation is shown with a box-and-whisker plot and by calculating the interquartile range?

What descriptor's variation is shown by calculating the mean absolute deviation?
2. In your IN9, complete the Effort/ Understanding/ Behavior chart by rating yourself on a scale of 1-4 on how well you think you did in class today.

Homework:

Complete either Level B (Puzzler Optional) or Level C (Challenge Optional).  Write your answers in your IN9.

Level B Homework

lesson_3_homework_b_and_puzzler.pdf
File Size: 805 kb
File Type: pdf
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Level C Homework

lesson_3_homework_c_and_challenge.pdf
File Size: 754 kb
File Type: pdf
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Math Humor: