Which of the following logical data formats does not allow one to provide information that is equivalent in meaning to the file shown here? (Note that the first row is a Header, defining the schema of this file)City,Month,Sunny_DaysSydney,Jan,28Sydney,Feb,24Sydney,Mar,21Hobart,Jan,25Hobart,Feb,21Hobart,Mar,18Perth,Jan,30Perth,Feb,26Perth,Mar,27Group of answer choicesTwo datasets: one with City,Sunny_Days, the other with Month,Sunny_DaysA dataset: City,Jan_Sunny_Days,Feb_Sunny_Days,Mar_Sunny_DaysA dataset: Month,Sydney_Sunny_Days,Hobart_Sunny_Days,Perth_Sunny_DaysThree datasets: one with City,Jan_Sunny_Days; another with City,Feb_Sunny_Days; and a third dataset with City,Mar_Sunny_Days
Question
Which of the following logical data formats does not allow one to provide information that is equivalent in meaning to the file shown here? (Note that the first row is a Header, defining the schema of this file)City,Month,Sunny_DaysSydney,Jan,28Sydney,Feb,24Sydney,Mar,21Hobart,Jan,25Hobart,Feb,21Hobart,Mar,18Perth,Jan,30Perth,Feb,26Perth,Mar,27Group of answer choicesTwo datasets: one with City,Sunny_Days, the other with Month,Sunny_DaysA dataset: City,Jan_Sunny_Days,Feb_Sunny_Days,Mar_Sunny_DaysA dataset: Month,Sydney_Sunny_Days,Hobart_Sunny_Days,Perth_Sunny_DaysThree datasets: one with City,Jan_Sunny_Days; another with City,Feb_Sunny_Days; and a third dataset with City,Mar_Sunny_Days
Solution
The logical data format that does not allow one to provide information equivalent to the file shown is "Two datasets: one with City,Sunny_Days, the other with Month,Sunny_Days".
This format does not allow for the equivalent information because it separates the data into two datasets, one with the city and the number of sunny days, and the other with the month and the number of sunny days. This separation loses the relationship between the city, the month, and the number of sunny days.
In the original dataset, each row represents the number of sunny days in a specific city for a specific month. By separating the city and the month into two different datasets, we lose this important context. The other formats maintain the relationship between city, month, and sunny days, just in a different structure.
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