841 Math Blog

On Wednesday we did questions about independent probability from a textbook. I was supposed to post this earlier, but I didn't know what question 7 was and still don't know. So, I am going to do question 6.



Question 6 :


i)

ii)

iii)




iv)

Finally, I'm done! :D This took pretty long, just doing all of this on paint. Haha, I bet 'certain' people are wondering who the next scribe is, well it's ................... MICHELLE!!! Have fun doing the next scribe Michelle ;P

Hello Everyone, in class today we had to do problems in Math .



























My homework was to do one of the questions or problem on from the text.






( on question 6a )





























I think i am finish, Mr.H told me to do a number from question 6 and i did. Thats all i heard him say to me, oh well. If i forgot alot of things just comment on my scribe and sorry Mr.H if i forgot alot of things. if theres a big space its because of my computer . The next person to do the next scribe is ................ SEAN HAHA ! .

HEEEEEELLO! :), i bet all the girls are just reading this, scrolling to the last part.. to see who i will pick to do the next scribe! MUAHAHAHA, well. NO you guys cant do that, READ THE POST, I WORKED HARD ON IT! AND ITS MATH. MATH IS FUN

HERE WE GO. (oh, and were suppose to pick 3 questions from each section of the page)
Questions 1-14, Single Event Probability (One thing happening)

4. You roll a number cube numbered from 1 to 6.
P(not a 6)
Express the probability as a fraction, and turn it unto a percentage.

7. A jar contains 24 black, 11 orange, 10 brown, and 9 violet marbles. A marble is drawn at random.
P(violet)
Express the probability as a fraction.

8. A number from 9 to 20 is drawn at random.
P(a number divisible by 2)
Express the probability as a percent. Round to the neaest percent.

Questions 1-10, Multiple Event Probability (More than one thing happening)

1. You roll a number cube numbered from 1 to 6
You then spin a spinner with 3 sections each with a different color. The spinner has the colors orange, gray, and pink.
P(2, 4, 1, 5, or 3 and orange)
* (AND is very important, it tells you that there are more things happening)

btw, im sorry that its really messy! ^

2. You flip a coin and toss a 1-6 number cube.
P(5 and tails)

5. You flip a coin and toss a 1-6 number cube.
p(not tails and not a 3)


YAY, im done! :) look at all that hard work. hahaha!
uhm, the next scribe person is.. DUN DUN DUN.. ARIELLE!

Today in class we had a hand out sheet for probability it was for homework.


Ok im done if i did anything wrong or i missed anything im sorry!.............The next scribe person is um ennie mennie minnie....................................CLARENCE LEGASPI HAHAHAHAHA now i can watch tv

Today in class we continued working on probability.....
Here are some of the questions..
Question 1
Question 3




Well im done.....I know its a short scribe and i'm sorry if I missed anything and sorry that im underlined right now it won't come off. Well anyway im just going to pick the next scribe and end this. The next scribe is.........Jayzie!!!!!!

In class today we did 3 things. The three things we did were the game titled "Is This Game Fair?", a probability tree, and the race game. Well the race thing was for homework, but everyone should've done that by now. Anyways, I will explain those three things now.


1. Is This Game Fair?
In class, we learned if the game was fair or not. From what we found out, it is NOT fair.
Here are the pictures that we used in class (well something that I wrote down).



From the percents shown, you can obviously see that the opponent has a higher chance of winning. With 2 dice, there are 36 total possible outcomes (T.P.O. shown in the picture). Out of those 36 outcomes, the player has 6 chances to get points. Thus coming with the fraction 6 over 36 (6/36). Although, for the opponent he has 30 chances to get points. So of course, in the game the opponent mostly wins. When the player wins, it is mostly luck.


2. Racing Game



In class, Mr. Harbeck told us to make this game fair and unfair. This game lets us choose the chances for the red or blue to win. The way this game works is with a die. Which means there are six total possible outcomes. So if the game was to be fair, then the possibilities would look something like this :



That picture means, each player (red and blue) would have a 50% chance of winning.
If the game was unfair, then the chances for one of the players would be really low. An example for the game being unfair is something like this :



So now the percents of each player would be ..

From the percents, you can see that blue has a really good chance of winning.
(Be sure to write this down, because I think that this is homework.)


3. Probability Tree

Another thing that we did in class was a probability tree. The items/pictures we used were a coin (H/T) , a spinner with three sides (A,B,C) and another spinner but with 4 sides (A,B,C,D). Here is a picture of what we did.


(Thanks to Kim C., for the picture.)

To calculate the total possible outcomes you figure out the possible outcomes of the 3 objects.
For the coin there are 2 outcomes, for the spinner with 3 sides there are 3 outcomes and for the spinner with 4 sides there are 4 outcomes.
Thus .. 2 x 3 x 4 = 24.
Here is a picture for that equation :

(Thanks to Kim C., AGAIN for the picture)

Probability trees are a great way to show how you found the total possible outcomes.
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Im done, sorry for all the pictures I copied off of the other posts, I just didn't have time to make my own. Please tell me what I did good and what I did wrong, as it will help me to do better next time. That being said, the next scribe is .. -drum roll- JOSEPH!
Good luck to the next scribes!

1.Is the game fair  

Why is the opponent always winning??