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Mr. K i created an account for the DEV site but i didn't get a confirmation email back thats why i put it up here.

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BOB - Personal Finance

ok so i think i'm going to do good on this test, i've gone over the notes quite a few times and i feel like i just get scared of the longer questions =\ so hopefully i do ok =)

BOB- vectors

ok for some very strange reason i find this unit quite difficult at times but i hope that by practicing more with the formulas that adamson referred to, i can figure out the problems i just think that i get stuck when it says "due" or "with a bearing" in the word problems. otherwise i think i'll be ok... but i gotta go back to studying =(

BOB - STATISTICS

ok so this is my BOB for the statistics unit so here i go...
as well all know this unit is a toughy and yes i'll admit it's not my favorite =\ but since i need a good mark on this test i wanna make sure i get through it in 1 piece. Maybe after i read over everything a few times it'll stick but as of right now i feel we've learned so much that it's in my head just floating around all unorganized. one of my most biggest weaknesses is identifying when to use normalc/pdf or binomialc/pdf.. i understand when to use either cdf or pdf but it's the normal or binomial that confuses me now.

ok i'm going to go on studying since................ MR. K. I GOT MY BINDER BACK! =)

BOB- Probability

sorry i know this BOB is late but i totally forgot to do it i got caught up studying after work and i just remembered. but anyways.. ok so after today's class talking about permutations and combinations i think i fully get that stuff.. and well for the kinds of questions like "how many different 4 digit numbers are there in which all the digits are different?" i think i am ok with but when it came to today's pretest.. i blanked out on the second page.. the question about Peter and Deanna.. i got lost... but after looking over today's slides i think i got it down i just hope i don't blank out tomorrow onthe actual test. i know it's late but i think i am going to keep studying till maybe 2 or 2:30 because i really want to do well on this test!

goodluck dudes!

"HOMEWORK MARK"

haha renan.. this homework is mad hard.. MR. K, i think i'm going to need help with this weekend's homework haha. well anyways, for the probability unit we have learned a lot and well i think i need to review everything for me to know what i need help with so i'll be back... toodles!

Scribe Post : Probability

Hey guys.. ok so today we worked more on probability specifically theoretical and experimental probability. As a recap:

Experimental Probability is the chance of something happening based on completing an experiment.
Ex: Tossing 3 pennies, using heads to represent boys and tails for girls, then repeating the toss 10 times, representing a family with three children.

Theorectical Probability is the chance of something happening based on realistic circumstances.
Ex.When having a child, there are only two outcomes. Either the child is a girl or boy, therefore there is a 50% chance it will be a girl and 50% chance it will be a boy. For the second child, there are no restrictions as to wether the child will be a girl or boy, so then once again the chance of having a girl remains 50% and for a boy 50% aswell.

Today we learned that we can easily use a tree diagram to help us find outcomes. For example using the example as stated under the theorectical definition:

Remember: inorder for it to be easily followed or understandable, the diagram must be expressed neatly.

So if you follow the branches of the tree diagram, you would get outcomes such as:

B B B

B B G

B G B

B G G - exactly 2 girls outcome #1

G B B

G B G - exactly 2 girls outcome #2

G G B - exactly 2 girls outcome #3

G G G

For this example, it asks how many outcomes consist of exactly 2 girls. The answer would be "3 out of 8"

Today we learned how to calculate probability on our TI-83 which we would call stimulating binomial experiments (number of trials, probability of success, number of stimulations). So using the example: In a family of three children, what is the probability that 2 of the children will be girls? We calculated it in class.

So on your TI-83 follow step by step intructions:
1. select [MATH]
2. slide over to [PROB]
3. select [randBin] (random binomial experiment)
4. type in (1, 3/8,40)
- 1 represents the outcome for success.
- 3/8 represents the theorectical probability of success
- 40 represents the # of times the experiement is repeated
5. click [ENTER]
- this will calculate the outcome
- "1" representing successes and "0" representing failures.
Instead of counting the number of time the experiment is successful, it can be calculated throught the calculator, so with #5 of the the steps above still on your screen continue the following:
6. select [STO] [2nd] [L1]
- this will store the information in List 1 (L1)
7. select [2nd] [STAT]
8. select [MATH] slide down to [sum] [2nd] [L1]
- this will calculate of the successes or all the failures.

Like Mr. K said in class informfation such as the information we entered into the calculator: (1, 3/8, 40) you will need to know how to calculate for yourself for test, quizzes and the exam.

ok well think that is it. See ya later!
The Scribe for tomorrow will be Melissa S.

Scribe Post

Sorry guys my internet was down yesterday but even so, i sure wether or not there was a purpose in my scribe because all we did yesterday in the morning was work on a review, then Mr. Rekrut gave us the answer key in the afternoon period.
hm... Mr. Kuropatwa when you read this can you get back to me please!

BOB - MATRICES

Like most, I think the matrices unit it pretty easy it's just the word problems that I have a hard time doing.. but hopefully after the review we get tomorrow or the next day will help clear it all up. hm... so yeah that's it for now.

GOODLUCK EVERYONE!

BOB: MATRICES

I'm think i'm good with everything like the basic matrix and using the diagram to make the route matrix or vice versa but transition matrices give me a hard time. if we are given a problem to do i try and sometimes don't get it then when we have the workshop and we go over it i'm ok again until theres another question to do lol. it takes me a while to figure out the problem... maybe just a little more practice? yep..