Compound Probability

What is the probability of landing on a number higher than 4 twice in a row?

What is the probability of drawing a blue marble twice with replacement?

What is the probability of picking a green marble, keeping it, then picking green again?

If you pick a red marble and keep it, how does that change the probability of getting a green marble when you pick a second time?

• No change

• More likely

• Less likely

• Impossible

Flip a coin two times

• Independent

• Dependent

P(2 or 3)

P(blue)

The two spinners above are spun. What is the probability of getting a perfect square (1,4,9,16), then the letter Z? 

• 3/20

• 9/20

• 1/8

• 11/40

Jacob's piggy bank has 18 quarters, 20 dimes, 24 nickels, and 43 pennies. He chooses a coin, does not replace it, then chooses another. What is the probability that he chose a dime then a nickel?

• 9/52

• 4/91

• 44/105

• 11/26

A cookie jar has 3 dozen chocolate chip, 1 dozen peanut butter, and 2 dozen oatmeal raisin cookies. If Megan chooses a cookie, does not replace it, then chooses another, what is the probability that she chooses a peanut butter then a chocolate chip cookie?

• 2/3

• 1/10

• 6/71

• 11/72