'First quartile' presentation slideshows

Chapter 1 Introduction

Chapter 1 Introduction. Individual: objects described by a set of data (people, animals, or things) Variable: Characteristic of an individual. It can take on different values for different individuals. Examples: age, height, gender, favorite class, speed, moisture, etc. Types of Variables.

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Exploring Data

Exploring Data. Individuals & Variables. Individuals are the objects described by a set of data. Individuals may be people animals, or things A variable is any characteristic of an individual. A variable can take different values for different individuals.

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Describing Data: Displaying and Exploring Data

Describing Data: Displaying and Exploring Data. Chapter 4. GOALS. Develop and interpret a dot plot. Develop and interpret a stem-and-leaf display. Compute and understand quartiles, deciles, and percentiles. Construct and interpret box plots.

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Box and Whisker Plots

Box and Whisker Plots. SWBAT create , read, and identify the values of a box and whisker plot. . Finish Data Collection.

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Variability

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Chapter 4: Variability

Chapter 4: Variability. Variability. The goal for variability is to obtain a measure of how spread out the scores are in a distribution. A measure of variability usually accompanies a measure of central tendency as basic descriptive statistics for a set of scores. .

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Descriptive statistics

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11.2B Box-and Whisker Plots

11.2B Box-and Whisker Plots. Objectives. To get a more complete picture of the data. Be able to figure out the first quartile, third quartile, and interquartile range. Introduction. The purpose of calculating a mean or median is to obtain one number that describes some measurements.

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1-6

1-6. Box-and-Whisker Plots. Warm Up. Problem of the Day. Lesson Presentation. Course 2. 1-6. Box-and-Whisker Plots. Course 2. Warm Up Use the data below for Questions 1-4. 14, 25, 37, 53, 26, 12, 70, 31 1. What is the mean? 2. What is the median? 3. What is the mode?

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CCGPS Coordinate Algebra

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Quartiles + Box and Whisker Plots

Quartiles + Box and Whisker Plots. Quartiles. Step 1: Find the Median. This is called Q2, or the second quartile. Step 2: Split the first half into 2 equal groups (same rules as finding the median). The middle value is called Q1, or the first quartile.

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Percentiles

Percentiles. A percentile is a measure of relative standing, meaning we get information about the position of a value relative to the rest of the data set. An example: last 10 golf scores for 18 holes, sorted: 82, 83, 84, 85, 85, 88, 90, 90, 93, 95

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AND

AND. Box and Whisker. Obj : I can find measures of variability using box and whisker Step one in making a box and whisker plot: Order the data and find the smallest value, first quartile, median, third quartile and the largest value 22,17,22,49,55,21,49,62,21,16,18,44,48,40,33,45. Step 1.

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