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foreign good day everyone this is Professor a and today we are going to learn about survey questionnaire components before you proceed with the actual writing of your visibility study you have to go first through with your survey questionnaire for your sampling so it is very very important to include the essential variables of a survey question or survey questionnaire because it will either make or break your demands and Supply analysis the demand and Supply analysis figures are derived in your survey questionnaires result so the following essential variables of a survey questionnaire are b-i-pp BF and CP so bi stands for buying intention or the willingness to buy so it has to answer the question are you willing to buy and if in case it is a service not a product you might change it to are you willing to Avail this next component is BP or buying power or the fry scale range or it answers to the question how much are you willing to pay so in your questionnaire the choice