Probability Scribe for October 10, 2008

Friday, October 10, 2008


Gumballs!
PROBABILITY

Theoretical Probability is the ratio of favourable outcomes to the number of total possible outcomes.

There's 1 red, 2 green, 3 yellow and 4 blue gumballs. The total possible outcome is 10.
In percentage, there's 10% of getting red, 20% of green, 30% of yellow and 40% of blue, that makes a 100%.

Experimental probability is the ratio of favourable outcomes to the total number of trials.

red= 14/100 green=20/100 yellow=31/100 blue=35/100

The more you experiment the closer you get to theoretical probability.


Which Italian Insects Often Fall In Love?

2.) Find each probability if you spin the spinner once. a. P (even number) = 4/10 because there are 4 even numbers out of 10.
= 2/5, equivalent fraction of 4/10 --> 4/10 divided by 2=2/5

= 40%, the percentage --> 2 divide by 5 or 4 dived by 10=0.4 x 100=40%

b. P (odd number) = 5/10 because there are 5 odd numbers out of 10.
= 1/2, equivalent fraction of 5/10 --> 5/10 divide by 2=1/2

= 50%, the percentage --> 1 divide by 2 or 5 divide by 10=0.5 x 100=50%

c. P ("A") = 1/10 because there is only 1 "A" out of 10 .

=10%, the percentage --> 1 divide by 10=0.1 x 100=10%


5.)If a raindrop falls on this set of tiles. How many equally likely outcomes are there?

= there are 25 outcomes

6.) Find each probability if a raindrop falls on the tiles.

a.) P (falling on black) = 9 out of 25 because there are 9
black tiles
= 9/25 = 0.36 x 100=36% as percentage

b.) P ( falling on white) = 16 out of 25 because there are 25
white tiles.
= 16/25 = 0.64 x 100=64% as percentage

c.) P (falling on green) = there is none falling on green.
= 0/25 = 0%

Heres a video!

5 comments:

  1. Breann 8-17 said...

    This is a good job

    October 10, 2008 at 8:28 PM  

  2. Giselle 8-17 said...

    good job! it really helped me with my homework.

    October 10, 2008 at 8:35 PM  

  3. linda 8-17 said...

    i didnt get the answer to the bottom portion of the worksheet .. >:\
    g'job, though.

    October 11, 2008 at 5:09 PM  

  4. courtneyc 8-17 said...

    GOOOD JOB! (:

    October 13, 2008 at 6:56 PM  

  5. ThatsSoSick said...

    veryy nice xP

    October 14, 2008 at 4:47 AM  

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