Sunday, March 7, 2010

All Four are Probably Probability!


14,500 people are sitting in a stadium. One of them is picked out. What are the chances that that person's birthday is on a Sunday?



You drop two coins into a muddy river by mistake. You saw one falling in, a dime. You know the other one had to be either a dime, or a nickel. After searching and pulling out one, and discovering it's a dime, what is the chance that the other is also a dime?


Kailyn likes strawberries, blueberries, and apples. She put bananas, apples, oranges, cherries, and blueberries into a basket. There are 36 fruits in the basket total. There are 7 bananas, 4 apples, 11 oranges, 8 cherries, and the rest blueberries. What is Kailyn's chance of picking out a fruit that she likes?



If I have:a normal coin with a heads and tails;a 6-sided die;and a bag containing 4 blue and 2 red marbles,what is the probability of me flipping a heads, rolling a 4, and picking out a red marble?

16 comments:

Anonymous said...

Bekah Phillips

1) it is not likely that the person's birthday is on a Sunday, but it is possible.

2)the chance that it is also a dime is 1 out of 2 because there are 2 things it could be, a dime or a nickel, but it could only be 1 of those 2, so the answer is 1 out of 2.

3)the answer is ten out of twenty-six because there are 10 fruits that she likes in the basket, and 26 that she dislikes

4)the answer is 4 out of 6

Anonymous said...

BLAKE SMITH

1. 1/7

2.1/2

3.10/36

4.coins die marbales
1/2 1/6 1/6

briartravis said...

1. 1/7
2. 1/2
3. 5/18
4. 2/3

Samyuth Pinnegar said...

1. 1/7
2. 1/2
3. 1/9
4. 1/36

-Samyuth Pinnegar

Anonymous said...

1) 2055 people

2) It is certain

3) 10 out of 36

4) 1 out of 2 for the 1st one.
1 out of 6 for the second one.
2 out of 6 for the 3rd one.


Blake Tabor

Whitney said...

1. 1/52
2. 1/2
3. 10/36 but reduced it is 5/18
4.4/14 but reduced it is 2/7
Landing on heads- 1/2
Rolling a 4- 1/6
Picking red marbles- 2/6
The total is 4/14 but reduced is 2/7.

Anonymous said...

1. 1/14500

2. 1/4 OR 1/5 counting half dollar

3. 6/36

4. 4/12

Brandon Nichols

Anonymous said...

Caleb Owens

1. There is 1/7 of a chance that the person's birthday is on a Sunday.

2. 1/2

3. 3/5

4. 1/2 1/6 1/2

Anonymous said...

From Daniel Neal,


1. 1/14,500

2. 1/2

3. 10/36

4. 4/14

Anonymous said...

1. 1/6

2. 1/2

3. 1/3.6

4. 1/11


Reese Guill

Anonymous said...

1. 1 out of 7

2. 1 out of 2

3. 11 out of 36

4.3 out of 14

houston

Anonymous said...

1. 1/7

2. 1/2

3. 5/8

4. 1/2,1/3,and1/6

Anonymous said...

queston 1: 7/52

question 2: 1/2

question 3: 5/18

question 4: 3/11

By: Kailyn Andrews

Will Edwards said...

first question- 1 out of 7

second question- 1/2 or 1 out of 2

third question- 5/18

fourth question- 1/36

Michael Southern said...

The chance of their birthday being on a Sunday is 1/7.

The chance the other one is a dime is 1/2.

The chance of her picking a fruit she likes is 10/36.

The probability that you will flip a heads is 1/2, rolling a 4 is 1/6, and picking a red marble is 2/6.

Anonymous said...

1) 279 out of 14,500 people should have a birthday on sunday.

2) 50% (percentage).

3) 36% (percentage).

4) Heads 50% Rolling a 4 17% and Red Marble 35%.

Kevin Dawes