## Thursday, March 5, 2009

### Scribe post for march 5, 2009

This math class we did number of the day, probability test , and Mr. Isfeld taught us more about probability

This are the questions of the math test and their answers.

True/False

1. There is an equal probability of picking a red card or picking a black card from a full deck of 52 cards. Answer: true.

2. Using a six-sided die, the probability of rolling an even number is 1:3. Answer: false.

3. Using a six sided die the probability of rolling a 5 or a 6 is 1:2. Answer: false.

4. If there are fewer "favourable outcomes" the probability increases. Answer: false.

5. The formula for determining probability is = all outcomes over favourable outcomes Answer: false.

Multiple Choice

6. The probability that an event happens is 4:12 what is the probability that the event will not happen. Answer: 8:12.

7. What is the probability of drawing a red face card ( i.e., king, queen, or jack ) from a full deck of playing cards?. Answer: 6:52.

8. If you spin this spinner 30 times, how many times might you expect it to land on red?

Answer: 10 times.

9. There are 14 marbles in a bag: 4 red, 4 orange, 5 green, and 1 blue. You take out one marble out of the bag. What is the probability of getting a red or a blue marble? Answer: 5: 14.

10. Each letter of the word PROBABILITY is written on a separate card and placed in a bag. Fareshta draws one card from the bag what is the probability of her drawing a B? Answer: 2:11.

11. A _________ is a successful result in a probability experiment. Answer: favourable outcome

12. The expression "50-50 chance" means a probability of _______ percent. Answer: 50%.

This is an example of probability which Mr Isfeld taught us more about a while ago.

What is the probability of hitting heads while flipping a coin and rolling 3 on a normal six sided die.

probability tree/diagram.

Answer: favourable outcomes
___________________
possible outcomes
= 1: 12.

I pick Owen to do the next scribe post.

#### 13 comments:

owen742 said...

Good Job!Charlie and thanks for picking me.

Abby 7-42 said...

Good Job Charlie!
ITs nice, especially the colors but Its messy. I mean its not in the right order i think. Too much spaces and more
GOOD JOB AGAIN

Monica742 said...

Good job,Charlie.
I liked the colors but is is kind of messy like Abby said.

Jomari742 said...

Good job, Charlie! You used different colors and you posted everything that we did.

Kamille742 said...

Good job Charlie ! I liked that you explained everything well and that you had colours and a video .

Caitlin742 said...

Good job Charlie !!
It was very well done ,I liked the colors and the video but im not sure if there are any problems at all on your scribepost . Good job!! ^_~

kaitlin7-42 said...

Good job Charlie i liked how you explained things(:

laura742 said...

Good job Charlie! I liked how you explained things and added colour.

Jex (Juan Exequiel) said...

Good job charle.
I like what u did.
It was nice.
GOod job again

Nadine 42 said...

GOOD JOB CHARLIE ! , it's really neat and understandable . BUT ITS NOT THAT MESSY THOUGH . goodjob . ;P

Zerlina 873 said...

Good job Charlie! I liked all of the colours, the pictures, and the video. I think that you should put the answers because everyone has there own homework to do. But good job again.

Jennifer7-42 said...

Good Job Charlie! I liked how you explained everything and it was also readable :D

Darlene742 said...

Goob job ! You used a lot of different colors and explain everything we did in class !