In a survey of companies, it was found that 45 were in the mining sector, 72 were in the financial sector, 32 were in the IT sector and 101 were in the production sector.
(a) Show the data as a percentage frequency table.
(b) What is the probability that a randomly selected company is in the financial sector?
(c) If a company is selected at random, what is the probability that this company is not in the production sector?
(d) What is the likelihood that a randomly selected company is either a mining company or an IT company?
(e) Name the probability types or rules used in questions (b), (c) and (d).