A television poll was conducted among regular viewers of the national news in a certain region where the three national networks share the same time slot for the evening news. Results of the poll indicate that 20% of the viewers watch the ABC evening news, 60% watch the CBS evening news, and 20% watch the NBC evening news. Furthermore, it was found that of those viewers who watched the ABC evening news during one week, 80% would again watch the ABC evening news during the next week, 10% would watch the CBS news, and 10% would watch the NBC news. Of those viewers who watched the CBS evening news during one week, 85% would again watch the CBS evening news during the next week, 10% would watch the ABC news, and 5% would watch the NBC news. Of those viewers who watched the NBC evening news during one week, 85% would again watch the NBC news during the next week, 10% would watch ABC, and 5% would watch CBS. (a) What share of the audience consisting of regular viewers of the national news will each network command after 2 weeks? (Round your answers to one decimal place.) ABC % CBS % NBC % (b) In the long run, what share of the audience will each network command? (Round your answers to one decimal place.)
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AS FOR GIVEN DATA....
from aove transition matrix T=
ABC | CBS | NBC | |
ABC | 0.8 | 0.1 | 0.1 |
CBS | 0.1 | 0.85 | 0.05 |
NBC | 0.1 | 0.05 | 0.85 |
and initial vector Xo =[0.2 0.6 0.2]
a) after 2 weeks vectoe X2=Xo*T2
ABC= 26.8%
CBS= 49.4%
NBC= 23.8%
b)in long run
ABC=33.3 %
CBS= 33.3%
NBC= 33.3%
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