Thursday HW:

Tonight please complete the two questions below for homework:

1.) "Middle left slide" for chapter 16 (feel free to glue this in and do it in your notes!)

• Note: pay attention to the fact that we're given variance and asked for variance....but everything we learned about shifting/rescaling applies to standard deviation!
• So, first, find the original standard deviation from the variance...
• Then find the "new" standard deviation for each bullet...
• Finally, convert this standard deviation back to a variance
• You cannot apply the rules of shifting/rescaling directly to variance!

2.) Complete #19 on page 382 (or below):

Tomorrow in class we'll continue to move forward and start to learn about the last component of chapter 16, "combining random variables."

Here's the plan for the rest of the week (and what happened today):

• Thursday (12/13): Chapter 16 Notes/Examples: Combining Random Variables
• Stamp = 4 MC on the back of yesterday's pinata classwork
• HW Questions
• New Stuff: Shifting and Rescaling Random Variables
• Example for Notes:
• Context: Pinball Wizard: Expected Prize Amount = $7.34, St. Dev. = $136.05
• Question 1: If each (original) prize amount were cut in half, what would the new expected value and standard deviation of prize amounts be?
• How could we find these using our calculator?
• Using the "rules" of shifting/rescaling?
• Question 2: If each (original) prize were increased by $5, what would the new expected value and standard deviation of prize amounts be? 
• How could we find these using our calculator?
• Using the "rules" of shifting/rescaling?
• Friday (12/14): Chapter 16 Notes/Examples: Combining Random Variables
• Pythagorean Theorem of Statistics!
• Monday (12/17): Chapter 16 Notes/Practice: More Combining Random Variables
• Tuesday (12/18): Chapter 14-16 Wrap Up, Questions, Practice
• Wednesday (12/19): Chapter 14-16 Probability Test
• Thursday (12/20): Chapter 14-16 Vocab Test (20 min), then Chapter 17 intro notes
• Friday (12/21): More Chapter 17 Notes (binomial and geometric probability)
• There will be a take home assignment over break! It will either be....
• Take Home Test (review of everything!)
• "Teaching Yourself Chapter 13" Assignment