Reserach Journal 2

• What is a pixel? How does it work? Why do we use pixels?

Pixel is really the short for Picture Element and are the little ”dots” that make up a image on cumputers. At one screen you may have millions of pixels that are together to build a image (each pixel has one color).We use pixels to customize your experience.

• What is a compound probability?Wich is the equation?

Is a mathematical term that basically means 2 events , they can be Mutally Exclusive ( cannot happen at the same time) or  Inclusive events (Happen at the same time). The equation is  P(A or B) = P(A) + P(B) – P(A and B) for the inclusive events and P(A or B) = P(A) + P(B) for the mutually exclusive.

• Give an example of a mutually exclusive compound probability.

You have a ten-sided die. The die is rolled. Find the porobability of:

P(4 or 8)          P(9 or less than 3)

• What does mutually exclusive mean? How is it different? Give an example of one that is and one that is not.

It means that there’s a compound event that can’t happen at the same time. It’s different from the inclusive event because at the inclusive events , they can happen at the same time but mutally exclusive don’t.

• What is a Venn Diagram?

Is a diagram that shows all the possible logical relations between a collection of sets.

Example:

• What is a Hexaflexagon?

Heaxaflexagons are flat  models that can be folded in certain ways to reveal faces besides the two that were originally on the back and front.

isakv 🙂

Today’s Journal Entry (09/01/14)

Hi!!

Today we worked with openprocessing again and we made different projects as:

And we also made 3-D figures:

That’s what me made today.

isakv 🙂

Research Journal

• About Permutations, we learned this with and without repeat. Examples: With reapeat; You have a lock with 3  posible characters that have to be filled with numbers and you can repeat the numbers. Without repeat; You have to make a rainbow of 3 colors without repeating them and options of colors are red, green,blue,yellow.

• About Combination we learned with and without repetition. Examples: With; You have to choose a 4 scoops Icecream of these flavors Mint, Vanillia, and chocolate.Without; You have to choose groups of 5 students out of a class of 25 students and the students can’t be at 2 groups.

• About Probability we learned 2 kinds. Independent or dependent.Examples:

1. Independent:   Wich is the probability of rolling 12 with rolling  2 times a  dice?
2. Dependent: Wich is the probability that I pick a red ball out of a boxs with 5 red balls and 7 blue balls?

• Talking about more probability, Why is the prisoners dillema a dillema?

The prisoners dillema is a dillema because it is about a problem with different solutions and it is a dificult choice to make.

• What is a dominant strategy?

“A strategy is dominant if, regardless of what any other players do, the strategy earns a player a larger payoff than any other”

(link:   http://www.gametheory.net/dictionary/DominantStrategy.html  )

• What is a Nash equilibrium?

A nash equilibrium is when all the players choose there the choice were both are “rewarded” with the same “reward”. At the image of the prisoners dillema above, the nash equilibrium was that both said that they were not guilty they both will end in prision 2 years so that both have the same “reward”.

• What is a simultaneous game?

“In game theory, a simultaneous game is a game where each player chooses his action without knowledge of the actions chosen by other players.”

(link: http://en.wikipedia.org/wiki/Simultaneous_game )

• What is the Monty Hall problem?

The monty hall problem is a problem about 3 doors, 2 of them have a goat and one has a car. You have to choose one door, and the host shows you a door that has a goat.Now you may choose swap or don’t swap the door.

Answer

• What is information cascade?

“An information  cascade occurs when people observe the actions of others and then make the same choice that the others have made, independently of their own private information signals.”

(link: http://en.wikipedia.org/wiki/Information_cascade )

Yesterday’s Projects

Yesturday, we worked with the porogram Openprocessing.

We made different projects as:

For more projects, look at:   http://www.openprocessing.org/user/35394

Today’s Journal Entry (07/01/14)

Hi!!

Today at the Stanford’s Honor Academies we learn about probability; this could be independent or dependent. Examples of these are: Head and tails (independent) and choosing a red ball (dependent). Also we learned about programing, we made websites (you’re visiting mine right now 😀  ) and worked with different programs.We also played games such us the hex game, the raindrops board game.That’s the Hex Game board’s.

And that was my day at Stanford’s Honor Academies day 2,

isakv 😀