anonymous
  • anonymous
The CBS TV show 60 min has been successful for many years. It is shown that among the TV sets in use 20% were tuned to 60 min. Assume that an advertiser want to verify that 20% share value by conducting its own survey and a pilot survey begins with 15 households having TV sets in use at the same time of a 60 min broadcast A) find the probability that five of the households are tuned to 60 min
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
There's a \(20\%\) probability of "success", where "success" refers to being tuned to the show. So, we'll assume a binomial distribution here. Then \[P(X=5)=\binom{15}5(0.2)^{15-5}(0.8)^5=\cdots\]

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