I am going to do the Scribe post for Thursday because Caitlin was sick.

On Thursday we started by doing what we always start with.Number Of The Day Thursday's number was 1247.936

On Thursday we had a test about probability. Here are the answers: 1.True 6. A 11.C 16.D2.False 7. D 12.C3.False 8.D 13.B4.False 9.D 14.A5.True 10.B 15.C

17.Favourable Outcome 18.Outcome 19.Tree Diagram and Probability Chart or Table 20.One Half 21.Tree Diagram 22. 1/25 23.Independent events

24.B 29. 25.A 26.D 27.E 30.They have an equal amount of winning. 28.C

After we did the test we copied some notes about probability. This is what they said(or at least what I wrote. (= ). More Probability P(Rolling Prime Number) with a regular die.

P(Rolling Prime Number)= Favourable outcome --------------------------- Possible outcome

P(Rolling Prime Number)= 3/6 we always have to simplify so 3/6is 1/2, 50% and,1:2

Find the probability of rolling two sixes in a row with a regular die. You need to use a probability tree to solve this problem.

P(two sixes in a row)= favourable outcome ---------------------------- possible outcome _ P(two sixes in a row)=1/36,2.78, 1:36 Independent Event- The outcome of one event has no effect on the outcome of another event.

Sample Space- All possible outcomes of an experiment. Tree Diagram-Diagram used to organize outcomes

Find The possibility of landing a coin on HEADS, and rolling an ODD number.

P(odd and heads) = favourable outcome ---------------------------- possible outcome P(odd and heads)=1/4,1:4,25%

I know that the font is too big and messed up but i don't know how to fix it.So im just going to post it like this.

For the next Scribe Post i pick Jex M. But if someone didn't do the Scribe Post yet you should tell me.

Thank you for checking my scribe please leave a Comment.

Here are some of the exercises that we did during class:

a) Choose a student from grade 7 and choose a student from grade 8.

Are these choices DEPENDANTor INDEPENDENT on each other? They are independent. Because the person you choose from grade 7 has no effect on the person you choose from grade 8. Therefore they are independent.

b) Choose one marble from a bag, then without replacing it, choose a second marble from the same bag.

Are these choices dependant or independent on each other? They are dependant because once you have chosen one marble from the bag, you have oneless marble to chose from when you pick your second one. They have an effect on each other, therefore they dependant. When figuring out if the choices you are making are dependant or independent on each other, the question you should as yourself is:DOES THE FIRST THING I DO, CHANGE THE SECOND THING I DO?

If the answer is YES, that means that they are DEPENDANT. If the answer is NO, that means that they are INDEPENDENT.

HOMEWORK: Make sure you know how to do a tree diagram, and a chart to find the sample space of probability problems.

Make sure that number of the day is finished: today's number was 7835.621

Don't forget TLE tomorrow!

(Please leave your comments and don't be afraid to point out any mistakes I have made so that next time I can do better!)

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.

Today in Math, we did "Number Of The Day" as usual. Today's Number of the Day is 9876.123.

Today we're in a new unit. Our next unit is called "Probability". Probability is the likelihood or chance of an event occurring.

1. Favourable Outcomes means what we want to happen.

Possible Outcomes means what might happen.

Probability can be expressed as a Ratio, Fraction, or Percent.

Example: Ratio Farction Percent 1:2 1/3 40%

More Types of Probability:

Earth reaching Absolute zero! This is an example of Impossible Outcome or event.

Impossible Outcome mean is when you are sure that event is not gonna happen.

People will always watch television whenever they're bored. This is an example of Certain Outcome or event.

We might find aliens in the future! If your Not sure ofsomething.

Homework:

Put a letter on top of the number line where you think it would go.

What is the probability...

A. ...flipping a coin and landing on heads?

B. ...with 1 normal six sided die, you roll an 8?

C. ...a bag contains 8 red markers and you reach into the bag and pull out 1 red marker?

D. You spin a spinner with four equal sections marked chocolate, fruit, yogurt and ice cream. What is the probability of the pointer stopping on the fruit?

E. A bag contains letters, A, B, C, D, E, F, G, H. What is the probability that you can pull out the letter H?

F. A bag has 3 gold marbles and 1 silver marble. What is the probability that you can pull out the silver marble?

G. What is the probability that the next baby born in Winnipeg is a boy?

Probability of spinning A.

Probability of spinning a vowel.

Probability of spinning Q.

I think this was homework too.

Discover the value of each shapes. The total weight is 77.

P.S.

Sorry because I didn't do the Friday's blog because I have Tonsilitis.

I choose Laura for the next scribe post. Thank you for checking my scribe please leave a comment.