Based on a​ poll, among adults who regret getting​ tattoos, 23% say that they were too young when they got their tattoos. Assume that ten adults who regret getting tattoos are randomly​ selected, and find the indicated probability. a. Find the probability that exactly one of the selected adults says that he or she was too young to get tattoos.

27% of all college students major in STEM (Science, Technology, Engineering, and Math). If 40 college students are randomly selected, find the probability thata. Exactly 8 of them major in STEM.    ?b. At most 9 of them major in STEM.   ?c. At least 10 of them major in STEM.   ?d. Between 4 and 8 (including 4 and 8) of them major in STEM.   ?

63% of all violent felons in the prison system are repeat offenders. If 45 violent felons are randomly selected, find the probability that   a. Exactly 29 of them are repeat offenders. Incorrectb. At most 27 of them are repeat offenders. c. At least 30 of them are repeat offenders. d. Between 26 and 34 (including 26 and 34) of them are repeat offenders.

A student majoring in accounting at Griffith University is trying to decide on the number of firms to which she should apply. Given her work experience, academic results and extracurricular activities, she has been told by a placement counsellor that she can expect to receive a job offer from 80% of the firms to which she applies. Wanting to save time, the student applied to five firms only. Assuming the counsellor’s estimate is correct, find the probability that the student receives: No offers At most two offers Between two and four offers (inclusive) Five offers.