SAMPLING & QUESTIONNAIRES Welcome to your SAMPLING & QUESTIONNAIRES 600 students are studying in a school. 50 students are selected out of 600 students to participate in a study. Identify the type of sampling used? Random sampling Stratified sampling 1200 truck drivers are working in a company. 60 heavy truck drivers and 80 light truck drivers are selected to participate in a study. Identify the type of sampling used? Random sampling Stratified sampling A sports website has 20000 members. 100 members are selected out of 20000 members to participate in a study. Identify the type of sampling used? Random sampling Stratified sampling In a housing society, 1500 families are categorised as low income family and 600 families are categorised as high income family. If 10% of families from each category participate in a study. Identify the type of sampling used? Random sampling Stratified sampling 200 visitors are selected from 1000 visitors who visit the palace. Identify the type of sampling used? Random sampling Stratified sampling The following table gives the total population and sample size of each strata. In which of the following options, sample size for strata 2 is correctly given? 1800 180 200 The following table gives the total population and sample size of each strata. In which of the following options, sample size for strata 1 is correctly given? 20 200 40 The following table gives the total population and sample size of each strata. In which of the following options, sample size for strata 3 is correctly given? 88 80 40 The following table gives the total population and sample size of each strata. In which of the following options, total size for strata 1 is correctly given? 1000 4000 400 The following table gives the total population and sample size of each strata. In which of the following options, total size for strata 2 is correctly given? 9000 90 1800 The following table gives the total population and sample size of each strata. In which of the following options, total size for strata 3 is correctly given? 20,000 10,000 15,000 An online travel portal conducts a survey on favourite travel destination for 10000 registered members. What type of data is being collected in the survey? Qualitative data Quantitative data An investment bank survey is conducted to get the annual income of individuals. What type of data is being collected in the survey? Qualitative data Quantitative data The following questions are given in a questionnaire to conduct a survey on school students. Choose the biased question from the following options? What is your favourite subject? What is your favourite travel destination? Do you like to play football? The following questions are given in a questionnaire to conduct a survey on photographers. Choose the biased question from the following options? What is your favourite photographic style? What is your favourite camera brand? Do you like to buy Nikon 830 Model?