Compound Probability

To calculate the probability of compound events (2 or more events), find the probability of each event and then...

• add the fractions

• subtract the fractions

• multiply the fractions

• divide the fractions

Tags

CCSS.HSS.CP.B.7

CCSS.HSS.CP.B.9

An example of ​ (a)   event is when you draw a card from a deck, put it back, and then draw another.

• an independent
• a dependent

Tags

CCSS.HSS.CP.A.5

An example of ​ (a)   event is when you draw a Skittle from a bag, eat one, and then draw another.

• an independent
• a dependent

Tags

CCSS.HSS.CP.A.5

Classify these events as independent or dependent.

Groups:

(a) Independent Events

,

(b) Dependent Events

• drawing a candy from a bag, eating it, then drawing another

• pulling a card from a deck, setting it aside, then drawing another

• rolling a die, then flipping a coin

• drawing a raffle ticket, withholding it, then drawing another

• drawing a candy from a bag, putting it back and drawing another

• spinning the same spinner twice

• drawing a card, replacing it and drawing another

• flipping a coin, then spinning a spinner

Tags

CCSS.HSS.CP.A.5

Pam will flip a coin and then roll a standard die.

What is the probability of landing on tails, then rolling a 3 or 4?

Tags

CCSS.HSS.CP.B.8

CCSS.HSS.CP.A.2

Pam will flip a coin and then roll a standard die.

What is the probability of landing on heads, then rolling at least 4?

Tags

CCSS.HSS.CP.B.8

CCSS.HSS.CP.A.2

If you spin two times, what is the probability of landing on green both times?

Tags

CCSS.HSS.CP.B.8

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.3

Is the following compound event independent or dependent
P(1 and A)

• Independent

• Dependent

Tags

CCSS.HSS.CP.A.5

Select all independent events.

• A spinner with 4 sections is spun and a coin is flipped.

• Two six-sided number cubes are rolled.

• A card is drawn, not replaced, and then a second card is drawn.

• A piece of candy is chosen, eaten, and then a second piece is chosen.

• A card is drawn, put back, and then a second card is chosen.

Tags

CCSS.HSS.CP.A.5

Determine which compound event is DEPENDENT.

• Selecting a candy bar from a bag, eating the candy bar, and selecting again

• Selecting a candy bar from a bag, deciding you don't want it, replace the candy bar and select again.

Tags

CCSS.HSS.CP.A.5