0 Thursday HW!

Tonight, please complete the following in your textbook (these are the same problems that are on the handout I provided in class!):

Page 364-366: 35, 37, 39, 41, 45 (You can also do question 15 for a little extra credit if you like--you'll have to look in the book for it)

Here are the answers (from the back of the book) in case you're using the handout and don't have your book with you:

35.) a. No, the flight leaving on time and luggage making the connection are not independent; the luggage is more likely to make the connection if the flight is on time.
       b. 0.695

37.) 0.975

39.) a. No, absenteeism and shift worked are not independent; night shift employees are twice as likely to miss work, work, work, work, work. 
        b. 0.014

41.) 0.571

45.) 0.563

Tomorrow in class I will provide an answer key with all of the tree diagrams and work shown as well! After our stamp we'll be doing some practice--some AP FR and MC! See you there!

And don't forget--we have a big quiz coming up on Tuesday! Chapter 14 AND 15 Vocab, as well as all the math we've learned thus far! 
     

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0 Wed nes day HW!

Tonight please complete the "independent, disjoint, or neither" multiple choice provided in class! (Remember no events can be "both" independent and disjoint!)

Maybe I'll collect this as a quiz, maybe I'll check it as homework...you should be doing your best work either way! 

Tomorrow in class we'll continue to work with tree diagrams and conditional probability! It might be pretty tough now, but you may be able to draw some tree diagrams and get a head start if you like--here's tomorrow night's homework:

Page 364-366: 15, 35, 37, 39, 41

Want to watch an awesome video that delves into the probabilities and some of the issues behind drawing names for a Secret Santa? Check out this video below! You'll even see some tree diagrams in action! (Thanks Micelda!)

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0 2'sDay HW!

Tonight, please complete the following in your textbook:

Page 363: 9, 11, 17, 21, 23ab

Tomorrow we'll get back to work with conditional probability and start to examine some tree diagrams!

For tonight' homework, two of the problems are based on a deck of cards....here's a breakdown of a deck in case you aren't sure....

Deck of Cards:

• 52 total cards
• 26 red cards
• 13 hearts
• 13 diamonds
• 26 black cards
• 13 clubs
• 13 spades
• There are 4 of each numbered card, one per suit
• So there are 4 of each card 2-10
• 4 Jacks
• 4 Queens
• 4 Kings
• 4 Aces

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0 Monday = back to the grind!

Tonight, please complete the following in your textbook:

Page 362: 1, 5, 7, 19

• For 1, to define sample space you need to list all possible outcomes!
• For 19, use your "words" to write out each scenario--just remember, in this problem, when we take out a battery we have to adjust our fractions! This is done without replacement!

Tomorrow we'll get back to work in chapter 15 and start to discuss conditional probability--see you there!

IF YOU DID NOT TURN IN THE THANKSGIVING BREAK WORK PLEASE BE SURE TO HAVE IT TOMORROW--THAT'S YOUR LAST CHANCE!

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0 Happy Thanksgiving!

First and foremost, happy Thanksgiving break! Enjoy your few days--rest up, relax, spend some quality time with friends and family, and recharge those academic batteries! When we come back we'll have 3 weeks (and a few more days) to power through the rest of probability!

Over break, please complete the following for homework:

• Venn Diagram practice problems!
• Remember, we can use Venn diagrams to model probability problems if we have an overlap, or "both" events occur--that's the key word that tells us we can use a Venn diagram!
• Also, remember if you are asked for "or," this includes "both"--for example, if I have to find the probability a person lives on campus or as a meal plan (1a), I do include the probability that someone has both...
• Use "Step by Step" example on page 347 for more help! Read the explanations on the left, they are likely more helpful than the formulas on the right!
• Or, google some "probability and Venn diagrams" for some more help!

• Normal Model/Probability AP Problem!
• The first part (a) is some Normal model review! Use last week's homework, the AP Stats guy, or your chapter 6 notes to help with this!
• For the second part (b), you have to use your answer from a to find an "at least one" probability, just like we saw on Tuesday's quiz!
• For part (c) you are asked to find a mean...here's some help...
• Use invnorm( to find the Z SCORE that has 99% of the data to the left of it (think about what you'll have to enter for the mean and standard deviation if you want a z-score!)
• Now, set up the z score formula...
• Substitute the value of the z-score with 99% of data below it, substitute your x-value (291.2), and then substitute the standard deviation--now solve for "x-bar!"

If you were out or lost the problems you can find them below. Be sure to have these done! I'm not sure if I'll check these each as a homework (each would count as it's own HW assignment), or collect and grade them--we'll see!

Finally, here's Monday night's textbook homework if you want to get a head start:

Page 362: 1, 5, 7, 19

• For 1, to define sample space you need to list all possible outcomes!
• For 19, use your "words" to write out each scenario--just remember, in this problem, when we take out a battery we have to adjust our fractions! This is done without replacement!

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0 Monday HW = STUDY!

Tonight, STUDY! Tomorrow we will start class with 2 quizzes--our chapter 14 vocab quiz, and a chapter 14 math quiz! 

You will have roughly 20 minutes (25 max) to complete each of these; then we'll take a look at some Venn Diagram problems!

• For the "math quiz," study your textbook problems from throughout the week along with the multiple choice we did in groups!
• Here are some practice problems you can try to study your math:
• Page 342: 27, 28, 29, 30, 31, 32, 33, 34
• Answers to even practice problems:
• 28a. 0.057; 28b. 0.125; 28c. 0.001; 28d. 0.729; 28e. 0.784
• 30a. 0.0225; 30b. 0.092; 30c. 0.00008; 30d. 0.556
• 32a. 0.148; 32b. 0.6; 32c. 0.344
• 34. 0.469
• And here is your chapter 14 vocab list:
• Probability
• Sample Space
• Complement
• Intersection (know the symbol and that this means "AND" or "multiply")
• Union (know the symbol and that this means "OR" or "add)
• Law of Large Numbers
• Law of Averages
• Disjoint aka Mutually Exclusive
• Independent
• Equally Likely

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0 Weekend HW!

This weekend, please complete the "Probability: The Basics Extension Questions" provided in class! 

• These questions are based on the questions/contexts from last weekend's homework--to get the probabilities/percentages you need, look at last weekend's homework or check the image below!
• You MUST do the challenge question to earn full credit! Use your notes! If you do no do this question you will earn half credit!
• Check your answers below!

On Monday we'll finish up chapter 14 and start chapter 15! Then, on Tuesday we'll have our chapter 14 vocab quiz and chapter 14 math quiz (20 minutes total), followed by some more chapter 15! See you there!

And here are the answers to your homework:

15a.) 0.353

15b.) 0.598

16a.) 0.896

17a.) 0.908

17b.) 0.60902

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