Chapter 12 - data display and measures of center
Lesson 12.1 - Recognize Statistical Questions
Objective: I can recognize statistical questions.
Data: information collected about people or things
Statistical Question: a question that asks about a set of data that can vary
Lesson 12.2 - Describe Data Collection
Objective: I can describe a data set by stating what quantity was measured and how it was measured.
Lesson 12.3 - Dot Plots and Frequency Tables
Objective: I can display data in dot plots and frequency tables.
Dot Plot: a graph that records each piece of data on a number line
Frequency Table: a table that lists the number of times each piece of data occurs
Relative Frequency Table: a table that shows the percent of time each piece of data or group of data occurs
Lesson 12.4 - Histograms
Objective: I can display data in histograms.
Histogram: a bar graph that shows the frequency of data in intervals
Bar Graph: a diagram in which the numerical vales of variables are represented by the height or length of lines or rectangles of equal width.
LEsson 12.5 - Investigate * Mean as fair share and balance point
Objective: I can understand the mean as a fair share and as a balance point.
Lesson 12.6 - Measures of Center
Objective: I can summarize a data set by using mean, median, and mode.
Measure of Center:
Mean: the sum of a set of data values divided by the number of data values
Median: the middle number in a set of data that are arranged in order, or the average of the two middle values if the number of data values is even
Mode: the value(s) that occurs most often in a set of data
Lesson 12.7 - Effects of Outliers
Objective: I can determine the effects of outliers on measures of center and variability.
Outlier: a value that is much less or much greater than the other values in a data set
Lesson 12.8 - Problem Solving * Data Displays
Objective: I can solve problems involving data by using the strategy draw a diagram.