The answer is: [A]: "vertical scope" .
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Answer:
It is both qualitative data and primary data.
Explanation:
Qualitative data is data that is not expressed in numerical values. Kay & Maggie are asking for opinons in the survey and interviews. These opinons are not numbers, they are words, language, therefore, they are qualitative.
It is primary data because Kay & Maggie are collecting the information directly from the desired source, the customers, instead of collecting the data from a third party.
Answer: The average mark is n.
Explanation: The average mark is a average of averages. The average mark of class of p student is n, and q student is n, so n+n/2= 2n/2=n.
