When studying radioactive material, a nuclear engineer found that over 365 days, 1,000,000 radioactive atoms decayed to 975,920 radioactive atoms, so 24,080 atoms decayed during 365 days. a. Find the mean number of radioactive atoms that decayed in a day. b. Find the probability that on a given day, 51 radioactive atoms decayed. a. The mean number of radioactive atoms that decay per day is (Round to three decimal places as needed.) b. The probability that on a given day, 51 radioactive atoms decayed, is (Round to six decimal places as needed.)

ChangesS Saveu 1. Below is an incomplete probability model showing the likelihood of selecting a marble from a way. nat 15 une experimental probability of selecting a purple marble? Probability Model Red Green Yellow Orange Purple 1 P(red) 2 1 P(orange) 1 P(green) 15 P(yellow) ? 30

Simultaneous

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