Dependent or Independent Probability

A bag has 3 red marbles, 2 blue and 4 yellow. What is the probability of pulling a red, putting it on the table and then pulling another red?

• Simple

• Independent

• Dependent

You select two cards, one at a time, from a deck of 52 cards without replacement.

• Simple

• Independent

• Dependent

A stack of cards has 5 red cards and 8 blue cards. Sarah draws a card without replacement, then draws another card. What is the probability that she will draw two red cards?

• Simple

• Independent

• Dependent

Match the following based on whether it would independent or dependent probability.

• Dependent

• Selecting 2 students for Knights at the Round Table

• Dependent

• Flipping 2 coins

• Independent

• Taking a piece of candy from a bag, eating it, then picking another

• Independent

• Taking a marble out of a bag, replacing it, then picking another

• Independent

• Spinning a spinner and rolling a die

Determine if each event represents dependent or independent probability.

Flipping three coins​ (a)  

Drawing candy from a bag, not replacing it , then selecting another piece​ (b)  

Getting a marble of a bag, replacing it, then getting another​ (c)  

• independent

• dependent

Determine whether each scenario below represents an independent event or dependent event. Flipping a coin and spinning a spinner.

• Dependent

• Rolling a fair six-sided die and getting an A on your next test

• Independent

• Flipping a coin and spinning a spinner

• Independent

• Drawing an Ace from a deck of cards, replacing it, then drawing a King

• Dependent

• Selecting a marble from a bad, not replacing it, and selecting another marble from the bag

• Independent

• Drawing a Queen from a deck of cards, then drawing a 10

A box contains 3 brand A batteries and 7 brand B batteries. 30% of brand A batteries are faulty and 40% of brand B batteries are faulty. A battery is selected at random and then checked to see if it is faulty. What is the probability that a not faulty brand A battery is selected?

• 0.21

• 0.09

• 0.28

• 0.25

A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent? (a)  

• Independent

• Dependent

Flipping two coins is an example of ​ (a)   events because the result of one event ​ (b)   affect the result of the other. Drawing two cards from a deck is an example of ​ (c)   events because the result of one event ​ (d)   affect the result of the other.

• Independent

• does not

• Dependent

• does

Determine if each event represents dependent or independent probability.

• independent

• dependent