CH9 Lesson 1 - Complementary Events | Baamboozle - Baamboozle

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It is sunny outside. What is the complement of this event?

It is NOT sunny outside.

Winning the lottery. What is the complement of this event?

NOT winning the lottery.

If I order a box of 12 glasses and 3 arrive broken, how many could I assume would arrive broken if I ordered 120?

30: 3/12 = x/120

P(landing on an ODD number)

6/8 or 3/4 or 0.75 or 75%

How many different outcomes are possible when rolling two dice?

6 outcomes on the purple die x 6 outcomes on the green die = 36 total outcomes

Finding a 4-leaf clover. What is the complement of this event?

NOT finding a 4-leaf clover.

P(Green or Blue)

1/2 or 0.5 or 50%

Bringing your ID to school. What is the complement of this event?

NOT bringing your ID to school.

P(rolling 6 on purple die) and P(rolling number less than 1 on green die)

0 or 0%

P'(Solid Black or Solid Red)

7/10 or 0.7 or 70%

25% of the students were wearing sneakers. What is the complement of this event?

students who were NOT wearing sneakers

Find the probability of pulling 2 striped marbles without replacement.

12/90 or 2/15

Wearing a blue shirt. What is the complement of this event?

Wearing a shirt that is NOT blue.

Getting an A on a test. What is the complement of this event/

NOT getting an A on a test.

75% of students completed their homework. What is the complement of this event?

students who DID NOT complete their homework.

Suppose you spin the spinner twice, find P(Landing on Red, Then Green)

3/64

Picking a red marker out of a box of markers. What is the complement of this event?

Picking a marker that is NOT red.

P(Red or Yellow)

4/10 or 0.4 or 40%

Being on time for school. What is the complement of this event?

NOT being on time for school.

How many different ways can you roll a 7 on these two dice?

6: {1,6}, {2,5}, {3,4}, {4,3}, {5,2}, {6,1}

The Bears won the game. What is the complement of this event?

The Bears did NOT win the game.

What's the probability of pulling 2 solid colored marbles with replacement?

36/100 or 9/25

P'(Yellow)

6/8 or 3/4 or 0.75 or 75%