We started off the class by looking at this interesting question:
- There was no right or wrong answer in this exercise.
- Mr. K was looking to see what we thought of probability and why we chose each numerator or denominator.
- Here we find that 4/9 (0.444 repeating) + 5/9 (0.555 repeating) = 9/9 (1)
- It is quite interesting to see that these two repeating numbers added together gives us the value of 1.
- What we were trying to get to here was the fact that if a number comes so close to another number, we can assume that it takes that form (Ex. 1/infinity = 0)
- Notice that the "Compound Event" examples are involved in one of our last units, Counting. Specifically, the Fundamentals of Counting.
- The slides today are quite self explanatory.
Next we looked at examples that involved finding the sample spaces.
- To find the sample space of the problem, we find the total possible outcomes either through a tree diagram or a chart/table.
- We are usually only asked this when there aren't a large number of possibilities (will be too much work)
- To find the probability, we divide the total number of favorable outcomes by the total number of possible outcomes.
- This is one of the attempts of solving question 1a, by one of our fellow students, John
- Remember that making mistakes benefits the class in learning*
- Mr. K makes a chart with the times the bus will arrive at the top and the times of the train will arrive on the left.
- Doing this, we find the total number of ordered pairs: also known as the sample space :)
Well that was all for today guys. I know it isn't as flashy and isn't that long or awesomeness to the max but yeah, I was sidetracked a lot today haha.
Well, that wasn't too bad. Most of it was self explanatory.
Tomorrows scribe is... hmmmm...
Sorry, didn't know who to pick, and it's almost SAMS BDAY HAHAH!