When studying radioactive material, a nuclear engineer found

Last updated: 7/10/2022

When studying radioactive material, a nuclear engineer found that over 365 days, 1,000,000 radioactive atoms decayed to 979,366 radioactive atoms, so 20,634 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, 55 radioactive atoms decayed.