Microsoft wants to administer a satisfaction survey to its ourrent customers. Using their customer database, the compary randomly sellects 70 outiorsers and asks them about their level of satisfaction with the company. What type of sampling is used? A. Convenience 8. Simpto random C. Cluster e. Strackied E. Systematic

The scenario describes Microsoft using its customer database to **randomly select 70 customers** to survey their satisfaction levels. Let's analyze the sampling methods provided: 1. **Convenience Sampling**: This involves selecting samples that are easiest to reach. *Not applicable* here since the selection is random. 2. **Simple Random Sampling**: Every customer has an **equal chance** of being selected, and the selection is purely random without any grouping or stratification. This matches the scenario described. 3. **Cluster Sampling**: The population is divided into clusters (often based on location or other natural groupings), and entire clusters are randomly selected. *Not applicable* in this case. 4. **Stratified Sampling**: The population is divided into strata (groups based on specific characteristics), and samples are taken from each stratum. *Not indicated* in the scenario. 5. **Systematic Sampling**: Involves selecting every *k-th* individual from a list after a random start. *Not the method* described here. **Conclusion:** The method used is **Simple Random Sampling**. **Answer:** B. Simple random