1. A study took a random sample of fifty high school students from each of the 424 school districts in Wisconsin and examined their social media habits. Each high school student was classified as either a light, moderate, or heavy social media user. The researchers looked at which groups tended to be happier. a. What is the population? (4 points) b. What is the sample? (4 points) c. Is this sample likely to be representative of the population? Explain youranswer. ( 6 points) .