The television show 50 Minutes has been successful for many years. That show recently had a share of 20, which means, that among the TV sets in use, 20% were tuned to 50 Minutes. An advertiser wants to verify that 20% share value by conducting its own survey, and a pilot survey begins with 13 households have TV sets in use at the time of a 50 Minutes broadcast. Find the probability that none of the households are tuned to 50 Minutes. P(none) = Correct Find the probability that at least one household is tuned to 50 Minutes. P(at least one) = Correct Find the probability that at most one household is tuned to 50 Minutes. P(at most one) = Incorrect If at most one household is tuned to 50 Minutes, does it appear that the 20% share value is wrong? (Hint: Is the occurrence of at most one household tuned to 50 Minutes unusual?) no, it is not wrong
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
The television show 50 Minutes has been successful for many years. That show recently had a share of 20, which means, that among the TV sets in use, 20% were tuned to 50 Minutes. An advertiser wants to verify that 20% share value by conducting its own survey, and a pilot survey begins with 13 households have TV sets in use at the time of a 50 Minutes broadcast.
Find the probability that none of the households are tuned to 50 Minutes.
P(none) = Correct
Find the probability that at least one household is tuned to 50 Minutes.
P(at least one) = Correct
Find the probability that at most one household is tuned to 50 Minutes.
P(at most one) = Incorrect
If at most one household is tuned to 50 Minutes, does it appear that the 20% share value is wrong? (Hint: Is the occurrence of at most one household tuned to 50 Minutes unusual?)
- no, it is not wrong
- yes, it is wrong
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