The television show Lett3rs has been successful for many years. That show recently had a share of 25, meaning that among the TV sets in use, 25% were tuned to Lett3rs. Assume that an advertiser wants to verify that 25% 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 Lett3rs broadcast. Find the probability that none of the households are tuned to Lett3rs. P(none) = Find the probability that at least one household is tuned to Lett3rs. P(at least one) = Find the probability that at most one household is tuned to Lett3rs. P(at most one) = If at most one household is tuned to Lett3rs, does it appear that the 25% share value is wrong? (Hint: Is the occurrence of at most one household tuned to Lett3rs unusual?) no, it is not wrong yes, it is 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 Lett3rs has been successful for many years. That show recently had a share of 25, meaning that among the TV sets in use, 25% were tuned to Lett3rs. Assume that an advertiser wants to verify that 25% 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 Lett3rs broadcast.
Find the
P(none) =
Find the probability that at least one household is tuned to Lett3rs.
P(at least one) =
Find the probability that at most one household is tuned to Lett3rs.
P(at most one) =
If at most one household is tuned to Lett3rs, does it appear that the 25% share value is wrong? (Hint: Is the occurrence of at most one household tuned to Lett3rs unusual?)
- no, it is not wrong
- yes, it is wrong
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