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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 Dakhiya 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 giri 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? O a. Systematic sampling b. Convenience Sampling O c. Stratified sampling O d. Cluster Sampling Which among the following statement is true about the sampling method chosen here? O a. This method is based on the judgement of the researcher O b. This method is also known as judgement sampling OC. It is a probability sampling method O d. It is a non-probability sampling method Which among the following steps is incorrect for the sampling method used here? O a Step 4: Some students are randomly chosen from the selected groups O b. Step 3: Some groups are chosen randomly to make up the sample OC. Step 2: The target population is divided into sub groups Od. Step 1: The target population is decided by the NPO