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- Tip at least 20% Tip less than 20% Works or worked in service industry 22 5 Never worked in service industry 36 8 Find P(individual has worked a service industry job) (2) Find P(individual either has never worked in the service industry or tips less than 20%) (4) Find P(individual has never worked in the service industry and tips less than 20%) (4) Find P(Tipping at least 20% | Service industry worker) (4) Find P(Two people both tip at least 20%)A survey asked 816 college freshmen whether they had been to a movie or eaten in a restaurant during the past week. Thefollowing information was obtained: 393 freshmen had been to neither a movie nor a restaurant, and 265 had been to amovie. If 90 of those who had been to a movie had not been to a restaurant, how many of the surveyed freshmen had been tothe following?(a) both a movie and a restaurant (b) a movie or a restaurant (c) a restaurant (d) a restaurant but not a moviea study is done to test the claim that Company A retains its workers longer than Company B. write the hypothesis in symbolic form?
- Many everyday decisions, like who will drive to lunch or who will pay for the coffee, are made by the toss of a (presumably fair) coin and using the criterion "heads, you will; tails, I will." This criterion is not quite fair, however, if the coin is biased (perhaps due to slightly irregular construction or wear). John von Neumann suggested a way to make perfectly fair decisions, even with a possibly biased coin. If a coin, biased so that P(h)=0.5200 and P(t)=0.4800, is tossed twice, find the probability P(hh).There are a _______distinct arrangements of the word "SLEEPLESSNESS" IF "SNESS" MUST BE excluded
