Solving Dependent Probability

A bag contains 2 striped cubes, 5 dotted cubes, 5 white cubes and 3 red cubes. What is the probability of drawing two striped cubes in succession, without replacing the first cube drawn?

• independent

• dependent

A pocket contains 3 pennies, 2 nickels, 3 quarters and 4 dimes. What is the probability of randomly choosing a quarter two times in a row if the first coin drawn is not replaced?

• dependent

• independent

Jaylan has a fun-size bag of SweetTarts™. Inside the bag are 4 pink, 1 blue, 2 yellow, 3 purple and 2 green SweetTarts™. What is the probability of drawing a yellow SweetTart™ three times in a row if each SweetTart™ selected is eaten before the next SweetTart™ is drawn?

• dependent

• independent

If you draw out a red marble, keep it, then draw out a blue marble, is it independent or dependent probability?

• Independent

• Dependent

What is the probability of picking a red marble and keeping it, picking another red marble and keeping it, then picking a blue marble? (leave answer in fraction form in lowest terms)

• 2/105

• 4/343

• 2/63

• 4/210

A number cube is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll? (leave answer in fraction form in lowest terms)

• 2/3

• 1/9

• 5/36

• 1/12

A cookie jar has 3 DOZEN chocolate chip, 1 DOZEN peanut butter, and 2 DOZEN oatmeal 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? (leave answer in fraction form in lowest terms) (also, sorry for making you hungry!)

• 2/3

• 1/10

• 11/72

• 6/71

If you spin two times, what is the probability of landing on green both times? (leave answer in fraction form in lowest terms)

• 1/6

• 1/9

• 1/36

• 1/30

What is the probability of picking a green marble, keeping it, then picking green again? (leave answer in fraction form in lowest terms)

• 1/7

• 1

• 1/49

• 0

You roll a 6-sided number cube. What is the probability of rolling an even number three times in a row? (leave answer in fraction form in lowest terms)

• 3/100

• 1/8

• 1/6

• 1/2