Monday, November 3rd- The Eve of the Election

Today is November 3rd!! One day before the Presidential Election, just in case anyone is wondering! Who would you vote for?? Barack Obama or John McCain??

Moving on to Math! Today there is no Mental Math, but Mr. Maksymchuk gave us time to work on Exercise 3 Questions 1-4 on Sample Spaces and Exercise 2 Question 10&11.

He is predicting that we wil be taking a test on this probability unit next Thursday, or the 13th of November.

We also received our Vectors Test! YAY!

Mr. Maksymchuk started to answer the first question of Exercise 3 using a spreadsheet, just to make sure people were on the right track:

1. Two special dice are rolled: Dice 1 has the following numbers: 2,2,4,4,4,6. Dice 2 has the following numbers: 1,1,1,5,5,5. Here are the answers of the question using the dice.

a)P(sum less than 6)= 15
b)P(sum greater than 2)= 35
c)P(sum is even)= 0
d)P(sum of 11 or 5)= 12
e)P(sum= 7 and one die is showing a 5)= 6

Here is a different way to answer this Question 1 that doesn't involve using a spreadsheet:

Here is a tree that describes the probabilities of rolling the following numbers on each dice: