In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use by the household. (no two respondents were from the same household.) among the respondents, 215215 answered "none," 280280 said "one," 362362 said "two," 149149 said "three," and 140140 responded with four or more. a survey respondent is selected at random. find the probability that his/her household has four or more cell phones in use. is it unlikely for a household to have four or more cell phones in use? consider an event to be unlikely if its probability is less than or equal to 0.05.

Sri lanka is one of the major tea producing nations in the world. a substantial portion of the country's annual tea production gets exported to various countries, including the united arab emirates, russia, and other countries in the middle east. given the success in these countries, sri lanka decided to foray into the asian market. research evidence indicated that people in myanmar are major consumers of tea and that there is a high demand for tea in that country. this convinced industry experts in sri lanka that exporting to myanmar was a good idea. even though sri lankan tea was priced competitively, sales in myanmar turned out to be far lower than expected. which of the following, if true, could explain this outcome? a. myanmar exported a substantial amount of its annual tea production that year. b. the tea exported from sri lanka is of the highest quality. c. the myanmar government hiked the minimum wage for labor. d. people in myanmar are willing to pay more for their domestic tea brands than for foreign brands. e. sri lankan tea exports to other asian countries like india and china have also not been very successful.