Question

1, Which of the following is NOT an example of independent events? (1

point) *
a.rolling a die and spinning a spinner
b.tossing a coin two times
c.picking two cards from a deck with replacement of first card
O selecting two marbles one at a time without replacement

Answer 1

The last choice: selecting two marbles one at a time without replacement.

Explanation:

Independant events means that the second action is not dependant or does not get influenced by the first action. Lets look at our options...

a) There is no correlation between rolling a die and spinning a spinner

b) Whatever result you get (heads or tails) the first time of tossing the coin will not effect your next result since you always have a 50% chance of both sides.

c) Because you put back the first card you choose, the probability of choosing a certain card is the same.

d) Because you don't put back the marble after the first time, you end up changing up the probability of choosing a certain marble, meaning that it is NOT a independant event.