Three friends are playing a board game in which moves are dictated by a spinner that has the numbers 1 through 12 equally distributed. Mariella is hoping to spin a 5 or a 9 on her next turn. Which of the following best describes this situation?
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Do you have choices?
Yes 1 second
Let's check each of them, shall we? :)
Certain events means events that will happen, no matter what
I bet your sense tells you that that certainly is not the case with getting a 5 or a 9
Impossible events are events that will not happen, no matter what
There is always a chance of getting a 5 or 9, as the spinner is fair, so the events are not impossible.
Overlapping events are events that may happen at the same time... you can't get both a 5 and a 9 at the same time, right? So the events are not overlapping.
Disjoint events are events that may NOT happen at the same time, that certainly is the case with getting a 5 and getting a 9, right?
Disjoint, then :D