Business, 04.07.2019 23:50 Thisisdifinite

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.

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In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use...

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