BOB!

Aw, i just saw the last slide now. That really sucks that i won't be getting a bonus mark! I had a family friend party on saturday and then i did some grocery/essential shopping with my mommy today and didn't get home until 7pm. Stupid daylight savings time! :( .. aah ohh well .. now i know for next time. Hopefully Mr. K does this again :) .. haha.

Anyways, back to my BOB. I thought that the probability unit was challenging for me. Just because out of everything in math .. probability is my weakest unit. For sure, I am going to need alot of extra help and studying to do for the test on tuesday. Hopefully I don't blank out on it :S

I would really like to review on everything we did on probability for tuesday's test, just to make sure i understand what i am doing and to hopefully have a good decent mark on the test.

Scribe Post:
February 19 - Introduction to Probability

Im not sure if i am supposed to be the scribe for today since i don't see the last scribes that we're supposed to be posted (unless it's just my computer). But i was told today in class by ickie that i am the next scribe. So just incase, I'll do the scribe for today anyway.


Today we started our second unit which is on Probability.
We learned a variety of language today, with many definitions and some formula's.

Probability: The branch of mathematics that deals with chance.
Sample Space: The set of all possible things that can happen for a given set of circumstances.
ex: Rolling a die 6, .. the sample space would then be {1,2,3,4,5,6}.

Event (E): A subset of the sample space. One particular outcome for a given set of circumstances.
Simple Events: The result of an experimental carried out in 1 step.

Compound Event: The result of an experimental carried out in more than 1 step.

Certain Event: An events whose probability is equal to 1.
Impossible Event: An events whose probability is equal to 0.


Calculating Probability Event:


* The "total number of outcomes" is the sample space.

Probability can be expressed as:
- A ratio
- A decimal
- A fraction
- A percent

**Important: Probability is always a number between 0 and 1!


Complimentary Events:
Is either written as E' or E. The compliment of an event refers to the case where E does not occur.

Ex: H= Drawing a Heart from a deck of 52 cards.
H'(the compliment)= Drawing a card that is not a heart.

Calculating Probability Complimentary:
P(E) + P(E') = 1

so ....
P(E) = 1 - P(E') .... OR .... P(E') = 1 - P(E)


Anyway, I hope that helped you guys alittle bit. If not, there are the slides that Mr. K posted up. Maybe you'll be able to understand it better there.
The next scribe will be christine m.

BOB

The matrices unit for me was pretty okay. The only thing I am having a problem with right now is the Transition Matrices. Other than that I think i'll do fine on the test, even though I used to suffer from blanking out on everything once the test is right in front of me. Haha. I hope that we'll get a chance to review on everything we've done on Matrices, so that I can be well prepared for the test on Thursday.