Weekend HW!

This weekend please complete the geometric and binomial probability practice (worksheet) provided in class (with some multiple choice on top)!

Here are the homework answers so you can check:

1. A

2. B

3. B

Part 2:

a. 4.975

b. 0.0267

c. 3.398E-21 or 0

d. E(x) = 160.8 (skip standard deviation)

e. Yes, 800 is less than 10% of all Americans.

f. 0.10185

g. 3.801E-18 or 0

h. 4.101E-6 = 0.0000041

i. 0.9999985

j. 0.5497 (*You will need to subtract two binomcdf's here)

k. 0.6744

How about some extra credit HW? For extra credit (and more binomial/geometric practice), complete parts A and B of the Geometric/Binomial review problems provided in class! (It says "A. Calculating Geometric Probabilities" at the top.

• Complete parts A and B.
• Ignore part C, this is not covered on our test (and we don't need to know how to do this b/c we can always use binomcdf for these types of problems).
• On Monday in class we'll answer any questions and do some reviewing for the test! See you there!

And here are the extra credit answers so you can check--you have to show the work to earn the EC!

Part A:
1. 4
2. 2.86E-6 = 0.00000286
3. 0.9961
4. 0.0615

Part B:
1. 0.2014
2. 1.455E-11 or 0
3. 0.0016
4. 1.0981E-6 = 0.0000010981
5. 0.0528
6. 1.8E-5 = 0.000018
7. 0.9999
8. 0.818
9. 0.0528 (you will have to subtract 2 binomcdf's here)
10. 0.18198
11. E(x) = 1.5 (skip standard deviation)

Finally, here's the plan for our tests next week--read this information below, and consider your schedule! If you know you will not be here, then be sure to make time to make up your test BEFORE break! It will not be a good idea to make the test up when you return--do whatever you need to do so you don't have a test looming over your head after break! Just come talk to me!

• Goal: finish chapter 17 on Friday (I am available B, G, or H period to review)
• Monday
• probability review and chapter 17 wrap-up (I am available B or H period to study)
• Tuesday
• probability math test
• Wednesday
• probability vocab test (and some open-note multiple choice)
• Thursday (1/2 day)
• Students who have done both tests will use this time to start their winter-break take home test!
• Students who were out caroling (or just out) on Wednesday will do their vocabulary test on Thursday!
• If you are out Tuesday you WILL NOT have enough time to do the "math test'" on a half day, so you will have to make time to do the test after school Monday, during study hall on Monday/Tuesday/Wednesday, or after school Tues or Weds
• If you are out both Tuesday and Wednesday you will do the vocab test on the half day (Thursday) but will have to make time to do the math test (Monday?)
• If you are leaving next week and will be out all week, or the above scenarios don't work for you, please come talk to me about your situation outside of class! Be proactive/responsible!