Compound Probability

What is the definition of compound probability?

• the probability of 1 or more events

• the probability of 2 or more events

Tags

CCSS.7.SP.C.8

What does it mean to "replace" something?

• to put it back

• to switch it out with something else

• to keep it

What is the probability of choosing a red marble?

• 9 out of 20

• 5 out of 20

• impossible

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

What is the probability of choosing a red marble, replacing it, and then choosing a blue marble? simplify your answer (solve using a dry erase or paper)

*hint: "and" means to multiply*

• 3 out of 50

• 6 out of 100

• 3 out of 100

• 2 out of 20

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.8

What is the probability of choosing a red marble, keeping it, and then choosing a blue marble. (simplify your answer)

*hint: keeping it means you don't put it back*

• 3 out of 45

• 6 out of 90

• 1 out of 15

• not here

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

For independent probabilities, the total_________.

• stays the same

• becomes one less

• changes

• increases by one

Tags

CCSS.7.SP.C.5

For dependent probability, the total________.

• decreases by 1

• stays the same

• increases by 1

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

Is the probability of flipping the coin and rolling the die independent or dependent?

• dependent, rolling a number on the die depends on the result from flipping the coin

• independent, rolling a number on the die does not depend on the result from flipping the coin

• neither

Tags

CCSS.7.SP.C.5

What is the probability of the coin landing on heads when flipped, and the die landing on six when rolled?

• 1 out of 12

• 1 out of 6

• impossible

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

What is the probability of choosing a blue marble twice in a row, without replacing the first one.

• 2 out of 90

• 1 out of 45

• 2 out of 8

• 1 out of 4

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8