Case Study 1: A Not for profit Organization (NPO) wants to create a sample of financially backward girl students who are unable to continue their higher education, from the AL Dakhliya governorate....

Extracted text: Case Study 1: A Not for profit Organization (NPO) wants to create a sample of financially backward girl students who are unable to continue their higher education, from the AL Dakhliya governorate. The organization wishes to sponsor the students' higher education expenses. For this purpose in the first stage, the NGO randomly selects some wilayats from the 8 wilayats in the Al Dakhliya governorate to form a sample and then selects all girl students from the selected wilayats to extend help to them by providing sponsorship for their higher education. Based on the above case answer the following THREE questions: What is the method of sampling used here? Stratified sampling Oa. b. Cluster Sampling C. Convenience Sampling O d. Systematic sampling