A Television Poll Was Conducted Among Regular Viewers of the National

question 81

Essay

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 40% of the viewers watch the ABC evening news, 40% 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 1 week, 75% would again watch the ABC evening news during the next week, 10% would watch the CBS news, and 15% would watch the NBC news. Of those viewers who watched the CBS evening news during 1 week, 80% would again watch the CBS evening news during the next week, 5% would watch the ABC news, and 15% would watch the NBC news. Of those viewers who watched the NBC evening news during 1 week, 80% would again watch the NBC news during the next week, 10% would watch ABC, and 10% would watch CBS. What share of the audience will each network command in the long run?
​
Please round your answers to the nearest tenth of a percent, if necessary.
​
__________ % would watch the ABC news
​
__________ % would watch the CBS news
​
__________ % would watch the NBC news

---

Definitions:

Positive Reinforcer

A prompting element, which upon being offered subsequent to an action, elevates the chances of the repetition of that action.

Stimulus

A stimulus is any object, event, or factor capable of inciting a physiological or psychological response.

Secondary Reinforcer

A stimulus reinforcing a behavior through its association with a primary reinforcer, not inherently rewarding.

Negative Reinforcement

A behavioral principle where the removal of an undesirable or negative outcome or stimulus strengthens or increases the likelihood of a particular behavior.