Wednesday, January 19, 2011

Probability

Probability is the likelihood or the chance of an event happening. We determine prorobability by making a fraction.



favourable outcomes

______________



possible outcomes



flipping a coin heads

_______________

calling heads or tails




Probability can be expressed, written, using fractions, ratios, and percents.

1

_ , 1:2, 50%

2

Out come is one probable result of a probability experiment.

Favorable outcomes is a successful outcome in a probabilty experament.

p(outcome) is short for saying probability of something happening.

Eg.p(5) When rolling a die.

here is a link to help you with probability.

http://www.ixl.com/math/practice/grade-3-certain-probable-unlikely-impossible

7 comments:

aaron873 said...

hi Ronalyn. your scribe post is good. I really like how you made some colour on yours. I also like the picture you put. You did a good job on it. I like how you explained the things we did. Good Job Ronalyn :)

kassey814 said...
This comment has been removed by the author.
kassey814 said...

hi ronalen you did a good job with your scribe post but i think you should of put a link here is one for you...http://jmathpage.com/JIMSProbabilitypage.html

madeline816 said...

Hi Ronalen, you did a good job on your scribe. I noticed you didn't have a video so here is a video that I found for you to use next time: http://www.youtube.com/watch?v=hHgpKRiZXLY

hannah816 said...

Hi Ronalen. Great scribe post. You should have added some of the examples we did. However, everything is well explained. Good job! You're just missing a video.

Video : http://www.youtube.com/watch?v=hHgpKRiZXLY

here is a link that may have also helped. : http://www.mathgoodies.com/lessons/vol6/intro_probability.html

jamodin 816 said...

Hey Ronalen. Your scribe is good but you don't have much pictures and no video. So here is a video that you could use next time.
http://www.youtube.com/watch?v=jgcRXHAUUjs

Cindy814 said...

Ronalen,I like the way you change the color of your words, it make it stand out.I noticed that you don't have a video, here is a video I found
http://www.youtube.com/watch?v=hHgpKRiZXLY
Good Job Ronalen!