Mathematics, 03.02.2021 03:20 any335
The half-life of a radioactive material is the amount of time it takes for 50%
of its radioactivity to decrease. If a particular material has a half-life of
35 years, then what percent will remain radioactive after 100 years?
(1) 13.8%
(3) 34.8%
(2) 22.7%
(4) 48.7%
Answers: 3
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Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.
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Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?
Answers: 2
The half-life of a radioactive material is the amount of time it takes for 50%
of its radioactivity...
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