Probability Practice! 💜

Recall! -62 - (-29) = ____

• -62 - 29

• -62 + 29

• 62 - 29

• 62 + 29

Tags

CCSS.7.NS.A.1C

Recall! 16 + (-92) = ____

• 76

• 108

• -76

Tags

CCSS.7.NS.A.1C

Recall! -526 + (-20) = ____

• 536

• 546

• -536

• -546

Tags

CCSS.7.NS.A.1C

What does it mean to be mutually exclusive?

• The probability of the first event affects the probability of the second event.

• Two events cannot occur at the same time.

• The probability of the first event does not affect the probability of the second event.

Tags

CCSS.HSS.CP.A.5

What does it mean to be independent?

• The probability of the first event affects the probability of the second event.

• Two events cannot occur at the same time.

• The probability of the first event does not affect the probability of the second event.

Tags

CCSS.HSS.CP.A.5

A letter is selected at random from the words LIFE and FUN. **On the test, you would draw a tree diagram, so please do so.** Find the probability that both letters are consonants from the selected letters.

<If you are stuck, ask me for the tree diagram.>

• 2/6

• 1/3

• 1/6

Tags

CCSS.7.SP.C.8B

What does it mean to be equally likely? Check all that apply.

• All outcomes have the same chance / probability of happening.

• There are the same number of each outcome.

• Each outcome has an equal chance of occurring.

• Why should everything be equal? I'm in the kid in the sandbox who doesn't share. 😁

Tags

CCSS.7.SP.C.7A

Mutually exclusive or independent?

Grace and Mia are running a race, fighting for first place.

• Mutually exclusive because only one person can win the race.

• Independent because both girls can win the race.

Tags

CCSS.HSS.CP.A.5

In a race Grace, Mia, and George have a 0.15, 0.32, and 0.25 chance of winning first place. Find the probability that one of them wins. *Tree diagrams are encouraged!*

• 0.72

• 0.15

• 0.32

• 0.25

• 0.57

In a race Grace, Mia, and George have a 0.15, 0.32, and 0.25 chance of winning first place. Find the probability that none of them wins.

• 0.72

• 1

• 0.32

• 0.28