theoretical probability

theoretical probability

Multiple Choice

Is flipping a coin a fair experiment?

• yes

• no

Multiple Choice

If I have all your names written in pieces of paper and inside a box, Is it a fair selecting method?

• yes

• no

Multiple Choice

Hitting the bull's eye playing darts, is it fair?

• yes

• no

Multiple Choice

What is the probability of selecting A in this spinner?

• 1/2

• 1/8

• 3/8

• 1/5

Open Ended

What is the probability of selecting a vowel in this spinner?

Another way of finding the probability of compound events is to multiply each probability

• probability of getting heads = 1/2

• probability of getting 5= 1/6

• probability of getting heads and 5 = 1/2 * 1/6

• 1/12

let's multiply probabilities:

• probability of tails in the first coin = 1/2

• probability of tails in the second coin = 1/2

• probability of both coins tails = 1/2 * 1/2

• 1/4

Multiple Select

What is the probability of getting 6 in both dice?

• 1/6

• 1/12

• 1/36

Multiple Select

what is the probability of getting both even numbers when rolling 2 dice?

• 1/4

• 6/12

• 1/36

Multiple Choice

what is the formula for the area of the circle?

• $\pi\ r^2$

• $\pi d$

• b*h

Multiple Choice

what is the formula for the area of the triangle?

• b*h

• b*h/2

• $\pi d$

YOU LOOSE

IF YOU GET 2 POINTS

Multiple Choice

what is the probability of getting 2 points when rolling 2 dice?

• 1/12

• 1/36

• 1/2

YOU WIN

IF YOU GET 5

Multiple Choice

what is the probability of getting a total of 5 points when rolling 2 dice?

• 4/12

• 4/36

• 1/2

THE GAME ENDS

IF YOU WIN OR YOU LOOSE

PROBABILITY OF ENDING GAME

2 TAILS OR 2 HEADS

Multiple Choice

WHAT IS THE PROBABILITY OF GETTING 2 HEADS?

• 1/2

• 1/4

• 2/2

Multiple Choice

WHAT IS THE PROBABILITY OF GETTING 2 TAILS?

• 1/2

• 2/2

• 1/4

IN PROBABILITY

• OR MEANS ADD PROBABILITY

• AND MEAND MULTIPLY PROBABILITIES