Bell Work

Directions: In your journal, number from 1 to 5. For each concept, give an example

Expectations• Begin bell work right after the tardy bell(2 pts)• Give eye contact when teacher gives

instruction (2 pts)• Stay in seat during instruction (2 pts)• Raise hand when you wish to speak (if it is an

appropriate time in the lesson, teacher will call on that you) (2 pts)• Show whiteboard (even if you don’t know how to do a

problem) (2 pts)

A bag contains 100 marbles. The shows how many red, blue, green and yellow marbles are in the bag.

Probability of drawing a RED marble

Ratio of colored marble to all marbles

Percentage of colored marble within all marbles

RED

16 = 4 16 = _4 16%

100 25 100 25

A bag contains 100 marbles. The shows how many red, blue, green and yellow marbles are in the bag.

Probability of drawing a BLUE marble

Ratio of colored marble to all marbles

Percentage of colored marble within all marbles

Blue

24 = 6 24 = _6 24%

100 25 100 25

A bag contains 100 marbles. The shows how many red, blue, green and yellow marbles are in the bag.

Probability of drawing a GREEN marble

Ratio of colored marble to all marbles

Percentage of colored marble within all marbles

GREEN

45 = 9 45 = _9 45%

100 20 100 20

A bag contains 100 marbles. The shows how many red, blue, green and yellow marbles are in the bag.

Probability of drawing a YELLOW marble

Ratio of colored marble to all marbles

Percentage of colored marble within all marbles

YELLOW

15 = 3 15 = _3 15%

100 20 100 20

A bag contains 100 marbles. The shows how many red, blue, green and yellow marbles are in the bag.

Probability of drawing a PURPLE marble

Ratio of colored marble to all marbles

Percentage of colored marble within all marbles

PURPLE

0 = 0 0 = 00%

A bag contains 100 marbles. The shows how many red, blue, green and yellow marbles are in the bag.

Probability of drawing a RED and BLUE marble

Ratio of colored marble to all marbles

Percentage of colored marble within all marbles

RED and BLUE

16 + 24 = 40 = 2 16 + 24 = 40 = 240%

100 20 5 100 20 5

A bag contains 100 marbles. The shows how many red, blue, green and yellow marbles are in the bag.

Probability of drawing a RED, BLUE, GREEN, YELLOW marble

Ratio of colored marble to all marbles

Percentage of colored marble within all marbles

RED, BLUE, GREEN and YELLOW

16 + 24 + 45 + 15 = 100 = 1 16 + 24 + 45 + 15 = 100 = 1 100%

100 100 100 100

Write on small whiteboard:

After two flips of the coin, what is the probability of getting at least one HEAD?

Write on small whiteboard:

After three flips of the coin, what is the probability of getting at least one HEAD?

Write on small whiteboard:

After four flips of the coin, what is the probability of getting at least one HEAD?

Look at the pattern:

What formula can be created?

Probability Theory

• http://www.youtube.com/watch?v=2y3PH4SqmlA

You may touch the bags NOW