10.10 Independent and dependent events
Interactive practice questions
A card is randomly selected from a normal deck of cards, and then returned to the deck. The deck is shuffled and another card is selected.
Are the events of each selection independent or dependent?
Dependent
Independent
In a lottery, a numbered ball is selected from a basket. The result is recorded and the ball is set aside. Several more numbers are taken from the basket in this way until the lottery is complete.
Are the selections of the numbers independent or dependent?
Two cards are randomly selected from a normal deck of cards without replacement. Are the selections independent or dependent?
A teacher has a "prize bag" filled with different prizes. The students form a line to draw a prize from the bag at random. Once a student has drawn a prize, they take it back to their desk.
Are their selections independent or dependent?