Monday, January 24, 2011

Probability Questions (01/24/11)

       1) p(heads then tails) when flipping a regular coin. Use a tree diagram to show the sample space. Express the answer as a percent.


         Answer: 1/4, 1:4, or 25%
                                                                                                                             

          2) p(rolling 4 and then 2) with a six sided dice. Express as a ratio. ( You can use a table or a tree diagram)



         Answer: 1/35, 1:36, or 2.7777* %
                                                                                                                      

       3) p( getting red and blue in any order) when spinning the spinner twice.


       Answer: 1/8, 1:8, 12.5 %

                                                                                                                                                            

       4) Create a tree diagram to show all the possible outcomes when a coin is flipped and a spinner is spun with five equal sections labeled run, skip, jump, twirl, and twist  is spun.


Math notes:
Random is an event which every outcome has an equal chance of occurring.
e.g.
Choosing a random color in a pile of other different colors
or choosing a random shampoo in your washroom. (:
                                                                                                                                  




6 comments:

jamodin 816 said...

Hey Kamille. Nice scribe post it is great. It's just like what we did in math today. You should have also said that random is not when you say you are picking a random crayon and then you choose the crayon color you like best. Choosing randomly is like if you close your eyes then grab any crayon. Other then that you did a good job. Here are two videos that you could put next time.
http://www.youtube.com/watch?v=kLy8Sa313Jc
http://www.youtube.com/watch?v=jgcRXHAUUjs

abby873 said...

Hey Kamille. Goodjob on your scribe-post it reminds me of what we did at math today. & its a really great review. I liked how you made the colors bold out for the readers to read it understandably. Oh and the random thing you could've also said that 'I spin the globe and I point my finger on a random spot' Nother then that good job and and great scribe-post (=

aaron873 said...

Hi Kamille nice Scribepost. I really like how you put all of the pictures and the video. I like how you made different colours to make sure there not stuck together. I like how you explained the thing we did in class. I like how you organize your work. I really like the video you put it really helped me a lot well good scribe post good job kamille :)

madeline816 said...

Hi Kamille, good job on your post! I liked how you put the borders on the pictures in color, and how you put everything we did in class. I also liked how you organized/separated the questions. Good job, Kamille!

Sarah7-11 said...

Hey Kamille. Nice scribe post. It's just like what we did in math. You should have also said that random is not when you are picking a random crayon, and you choose the crayon color you like best. Here is a video you could add.
http://www.youtube.com/watch?v=jgcRXHAUUjs

Sompong8-17 said...

Hey, Kamille. Your post is really detailed, and it's reminds me of everything that day. When you put down the notes, ou should have put examples like, random could be, when you close your eyes and pick a fruit. Anyway, good job! :)