Examlex
George buys six lottery tickets for $2 each.In addition to the grand prize,there is a 20% chance that each lottery ticket gives a prize of $4.Assume that these tickets are not grand prize winners.
a.What is the probability that the tickets pay out more than George spent on them?
b.What is the probability that none of the tickets are winners?
c.What is the probability that at least one of the tickets is a winner?
Population
A group of individuals of the same species living in a particular geographic area and capable of interbreeding.
Meteorite Impact
Occurs when a meteoroid survives its passage through the Earth's atmosphere and impacts the surface, often resulting in craters and sometimes affecting the environment or climate.
Dinosaurs Extinct
The event in which dinosaurs ceased to exist, primarily occurring at the end of the Cretaceous period due to mass extinction events.
Pangea
Supercontinent that began to form about 300 million years ago and broke up 100 million years later.
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