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Chapter 13 Introduction to Statistics

What do these four statements have in common?

Statistics

Review Quick Check questions 215-216

13.1 Collecting and Tabulating Data1. What is a question?

a. Examples:

2. What is a statistical question?a. Examples:

3. How are these different?

4. Vocabulary:a. _____________

b. _____________

c. _____________

d. _____________

5. 3 Ways to collect data:

a. _____________

b. _____________

c. _____________

6. Now what? – ORGANIZE IT!a. Write as a set { , , , …}

b. _____________

c. Graph it!i. Bar graphsii. Line Plots

iii. _____________

iv. _____________

v. Box and Whisker Plotsvi. Stem and Leaf Plots

b. Why are there so many ways to graph data? 13.2 Dot Plots

1. How to make Dot Plots

2. Interpreting Dot Plots3. Descriptors:

a. _____________

b. _____________

13.3 Histograms1. What is a Histogram?

a. Looks like a _________ graph

b. ________ intervals of data

c. No ________ between bars

2. How to make Histograms

3. Intervals – does size of the interval matter?a. Choose appropriate intervals

4. ß Interpreting Data