Probability Solution

Nelson is learning the difference between independent and dependent probability. Select all scenarios that show an example of dependent probability.

• Picking a piece of candy from a bag, eating it, then picking a second piece.

• Drawing a card from a deck, replacing it, and then drawing another card.

• Spinning a spinner twice.

• Selecting two marbles from a bag without replacement.

• Rolling a number cube five times.

There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color?

What is the probability of spinning this wheel twice and landing on the green section both times?

Independent probability happens when the probability of the first event does not affect the probability of the second event.

• True

• False

A regular 6-sided number cube is rolled twice - what is the probability that it lands on a number that is even on the first roll, the a number that is NOT a 6 on the second roll?

What is the probability of spinning a 1 on the spinner and drawing the letter A out of the bag?

A pocket contains 3 pennies, 2 nickels, 1 quarter and 4 dimes. What is the probability of randomly choosing a dime, replacing it, and then drawing a penny?

• Independent

• Dependent

Oscar has a bag of game pieces - what is the probability that he will choose a blue piece, replace it, then choose a yellow piece?

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 a row, without replacing the first cube drawn?

• Independent

• Dependent

• F

• G

• H

• J