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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, 208 answered​ "none," 287 said​ "one," 367 said​ "two," 139 said​ "three," and 53 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.

Question

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, 208 answered​ "none," 287 said​ "one," 367 said​ "two," 139 said​ "three," and 53 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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None 287 Ohe Tuo 367 139 Thue foun or More 53 Probabilityo houschold also Explain Snethen it s an dn this QastiBn, it is Yequired to find te has foun unusual ewent or not Cell phonus in u O most

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