1. Chapter 2: Sampling and Surveys Section 2.1: Samples, Good and Bad

2. The Bad…

3. The Good…

4. Table A

5. Using Table A

6. Generating random numbers (www.whfreeman.com/sta)Simple Random Sample Applet www.whfreeman.com/sta

7. See the internet website…

8. Using the Graphing Calculator Texas Instruments… ◦ To generate a list of random integers, do the following:  Press MATH  Select PRB  Choose 5: randint(  Enter criteria  Examples: randint(1,12); randint(1,50)  Examples: randint(1,12,4); randint(1,50,6)

9. Group Work Using a graphing calculator, enter the following: randint(00,99,20). Record the numbers. (randint can be found by hitting the MATH button, then PROB; the comma is above 7) Hit return and record numbers 3 more times. Using Table A choose 4 rows (record the row #s) and copy onto paper. Divide numbers on each line into two number strings and record the results. Which method produces more “random” numbers?

10. Homework Page 67-68, #2.1-2.2 Page 74-75, #2.7-2.11 This is Tuesday’s assignment. You will be given a copy of Table A then.